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SF Series Countertop Gravity Water Filter System 2.25 Gallon

Regular price $179.99 USD $179.99 0% OFF


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Filtration Stages: 7-Stage TDS Reducer Filter
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Designed for households of 3–5 people, this 2.25-gallon SF Series countertop gravity water filter features durable 304 stainless steel, an integrated water level window, and a space-saving single-filter design. Choose a 7-stage TDS reducer, 8-stage alkaline filter, or 8-stage fluoride-reduction filter based on your household water needs. Each system includes one selected SF Series filter.

Ask about SF Series Countertop Gravity Water Filter System 2.25 Gallon

Product Details

System Overview

01
Product Series SF Series Gravity Water Filter System

Compact countertop gravity filtration for daily home use.

System Capacity 2.25 Gal

Recommended for 3–5 people.

Item Number K8783A

2.25 Gal SF Series system version.

System Size Φ22 × 66 cm

Measured with the stand installed.

System Weight 3.3 kg / 3.7 kg

Approx. net weight / gross weight.

Filter Setup Single SF Series Filter

This system uses only one filter element at a time.

Water Temperature 45°F–100°F

Use cold or room-temperature water only.

Included Filter Quantity 1 Box / 1 Filter

The matching filter included with the system is one filter.

Note: The SF Series uses a single-filter structure. Only install one compatible SF Series filter in the system. Do not install multiple filters at the same time.

Choose Your SF Series Core Filter

02

Single Filter Selection Required

This 2.25 Gal SF Series system uses one SF Series Core Filter at a time. Choose one filter option based on your water needs. Each filter selection includes 1 Box / 1 Filter.

7-Stage TDS Reducer Filter

Item No. K8023

Designed for SF Series filtration with a TDS reduction material layer.

7-Stage Filtration Reduces Chlorine Reduces Heavy Metals Reduces TDS
Filter Life: Up to 100 Gallons per Filter

8-Stage Alkaline Filter

Item No. K8022

Includes an alkaline material layer for users who prefer an alkaline filter option.

8-Stage Filtration Reduces Chlorine Reduces Heavy Metals Raises pH Level
Filter Life: Up to 1,000 Gallons per Filter

8-Stage Fluoride Reduction Filter

Item No. K8021

Adds fluoride reduction support to the SF Series filtration structure.

8-Stage Filtration Reduces Chlorine Reduces Heavy Metals Reduces Fluoride
Filter Life: Up to 1,000 Gallons per Filter
Filter quantity: The SF Series system uses 1 filter only. Each filter option includes 1 Box / 1 Filter. Actual filter life may vary by water quality and usage.

Key Filter Indicators

03
Filter Life Shown by Filter Option

Each SF Series filter option has its own rated filter life. Check the selected filter card above.

Flow Rate Depends on Water Pressure

Flow may vary by water pressure, filter type, and maintenance condition.

Filter Quantity 1 Box / 1 Filter

Use one compatible SF Series filter in the system.

Filter Size Approx. 3.94 in × 7.48 in / Φ10 × 19 cm

Check filter size and system compatibility before purchase.

Filter Type Core Filter

Designed for compatible SF Series filtration systems.

Filtration Options 7-Stage / 8-Stage

Choose from TDS reducer, alkaline, or fluoride reduction options.

Compatibility Purewell SF Series Filter Systems

Designed for SF Series single-filter system structure.

Also Compatible With Zero Pitchers and Dispensers

Check your pitcher or dispenser model before purchase.

Filter Use Notes

04
Use One Filter Only

The SF Series system is designed to work with one compatible SF Series filter at a time.

Flush Before First Use

Flush the filter before first use according to the product instructions.

Replace On Time

Replace the filter when the rated capacity is reached or when water flow becomes noticeably slower.

Choose the Right Option

Select TDS reducer, alkaline, or fluoride reduction based on your water needs.

User Guide
Installation Guide

How to Set Up Your Countertop Gravity Water Filter System

Follow these simple steps to assemble the system, install the core filters, flush before first use, and prepare it for daily use.

Prepare and Clean the Parts

Before assembly, check the main parts and clean the system components.

  • 1
    Wash Your Hands Handle the system with clean hands before setup.
  • 2
    Check Included Parts Make sure the chambers, lid, spigot, stand, and core filters are ready.
  • 3
    Clean Before Assembly Rinse the chambers and accessories before first use.
Note: Use cold or room-temperature water only. Do not use hot water.

Assemble the Lid Knob

Attach the lid knob to the lid and secure it with the included hardware.

  • 1
    Place the Lid Knob Insert the lid knob into the center hole of the lid.
  • 2
    Add Washer and Gasket Place the washer and gasket in the correct position.
  • 3
    Tighten the Screw Fasten the knob until it feels stable.
Tip: Do not overtighten. The lid knob should feel secure but not forced.

Install the Basic Spigot

Install the basic spigot into the lower chamber before stacking the system.

  • 1
    Insert the Spigot Place the spigot through the lower chamber hole with the gasket and washer.
  • 2
    Add the Inside Parts Place the remaining washer and gasket from the inside of the chamber.
  • 3
    Tighten the Hex Nut Use the wrench to secure the spigot vertically.
Before filling: Make sure the spigot is closed to help prevent leaking.

Install the Core Filters

Use the required number of core filters for your system model.

  • 1
    Insert the Core Filters Place the core filters through the holes in the upper chamber.
  • 2
    Secure the Filters Use the filter washer and wing nut to hold each core filter in place.
  • 3
    Check Stability Make sure each core filter is firmly installed before adding water.
Note: This guide uses “core filters” only. Filter type and quantity may vary by system option.

Stack the Chambers and Stand

Set the system together in the correct order before flushing.

  • 1
    Attach the Anti-slip Mat Place the anti-slip mat on the bottom of the lower chamber.
  • 2
    Place the Lower Chamber on the Stand Set the lower chamber securely on the stand.
  • 3
    Add the Upper Chamber and Lid Place the upper chamber into the lower chamber, then cover it with the lid.
Stability check: Make sure the system sits flat and stable before filling water.

Flush Before First Use

Flush the system before drinking water from it for the first time.

  • 1
    Fill the Upper Chamber Add water and let it move through the core filters.
  • 2
    Discard the First Batch Pour out the first filtered water from the lower chamber.
  • 3
    Repeat 2–3 Times After flushing, the system is ready for regular use.
Tip: Fill the upper chamber as much as possible at the beginning to support gravity-fed filtration.
System Type Countertop Gravity System
Filter Reference Core Filters
First Use Flush 2–3 Times
Water Temperature 40°F–100°F / 4–37°C
How It Works

How the Filter System Works

Water is added to the upper chamber and moves through the center filter by gravity. After filtration, water collects in the lower chamber and is ready to dispense from the spigot.

1. Fill the Upper Chamber

Add water to the top chamber. The system works without electricity, plumbing, or pressure.

2. Gravity Moves Water Through the Filter

Water naturally flows downward through the center filter element, where the filtration process takes place.

3. Filtered Water Collects Below

After passing through the filter, water collects in the lower chamber for storage and daily use.

4. Dispense When Needed

Open the spigot to pour filtered water for drinking, cooking, or everyday hydration.

Filter Replacement

Filter Replacement Guide

Replacing filters on time helps your filtration system keep working properly. It also helps maintain water flow, drinking water taste, and everyday use confidence.

!
Track Usage Time & Filter Life

Filter life may vary by water quality, usage frequency, and total water volume filtered.

Rated Filter Life Reached

Replace the filters when they reach the rated lifespan listed for your filter model.

Water Flow Becomes Slower

If filtering takes much longer than usual, clean or replace the filters as needed.

Taste or Odor Returns

If unwanted taste or smell becomes noticeable again, it may be time to replace the filters.

Source Water Matters

Rain, river, stream, or well water may shorten filter life compared with regular tap water.

What to Check Before Replacing Filters
Confirm Compatibility

Choose filters that match your filtration system, filter series, and setup.

Prepare New Filters

Prime, rinse, or flush new filters according to the product instructions.

Check Seals & Washers

Make sure washers, seals, and threaded parts are installed correctly.

Clean the System

Empty and clean the upper and lower chambers before installing new filters.

Replace Sets Together

If your system uses paired filters, replace matching filters together when needed.

Record the Date

Write down the replacement date and set a reminder based on your usage.

Filter & System Replacement Checklist

Use this checklist to choose the right replacement filter for your Purewell system and check whether it may also fit select compatible systems from other brands.

Filter Category Filter Type Fits Purewell Systems Other Compatible Systems
K Series Carbon Filters (Pro) Core Filter SS Series and K Series filtration systems. Select ProOne Big+ / Big II and Berkey BB9-2 style systems.
K Series Carbon Filters Core Filter SS Series and K Series filtration systems. Select ProOne Big+ / Big II and Berkey BB9-2 style systems.
K Series Carbon Filters (Classic) Core Filter SS Series and K Series filtration systems. Black Berkey Elements style systems and select Berkey gravity systems.
K Series Ceramic Filters Core Filter SS Series and K Series filtration systems. Most gravity-fed systems from major brands, including Berkey, ProOne, Alexapure, Waterdrop, Doulton, Boroux, Culligan, and more.
SS Series Square Carbon Filters Core Filter SS Series and K Series filtration systems. Select ProOne Big+ / Big II and Berkey BB9-2 style systems.
SF Series Multi-Functional Filter Core Filter SF Series filtration systems. Select Zero pitchers and dispensers.
BO Series Unique Compound Filter Core Filter BO Series filtration systems only. Not intended for K Series, SS Series, or other gravity filtration systems.
K Series Specialty Add-On Filters Supplemental Filter Use together with K Series or SS Series core filters. Select Travel, Big, Royal, Imperial, Light, and Crown Berkey models as an additional filter option.
Filter replacement frequency directly affects the service cycle of your filtration system. Timely replacement helps support water flow, filtration performance, drinking water taste, and long-term system reliability. Actual filter life may vary based on source water quality, usage frequency, and total water volume filtered.
List

System Package

Main parts included for the countertop gravity water filter system.

  • Upper Chamber× 1
  • Lower Chamber× 1
  • Lid× 1
  • Anti-slip Mat× 1
  • Stand× 1
  • User Manual× 1

Basic Spigot Parts

Parts used to install the basic stainless steel spigot.

  • Basic Spigot× 1
  • Spigot Gasket× 2
  • Beveled Washer× 2
  • Spigot Hex Nut× 1
  • Wrench× 1
  • Screwdriver× 1
  • Plastic Spigot× 1
  • Silicone Plug× 1

Selected Filter Package

Your package includes the SF Series Carbon Filters selected with this system. The filter option may vary based on your product selection.

  • Selected Filters SF Series Core Filter
  • Package Quantity 1 Box / 1 Filter
  • System Use Install One Filter Only
Note: The final filter type is based on the filter option selected before checkout.
Video

2.25 Gallon Water Filter System Installation Video

Watch this step-by-step guide to set up your Purewell 2.25 gallon water filter system and install the filter element in the correct position before first use.

Installation Guide

2.25 Gallon System Setup & Filter Placement

This video shows how to assemble the Purewell 2.25 gallon water filter system, including how to place and install the filter element properly for daily filtration.

Recommended before first use Helps confirm correct filter placement Covers basic system setup and assembly Useful when installing or replacing the filter element

NSF Certified for Your Health

Independently tested to meet NSF/ANSI 42 & 372 standards, the highest level of trust in water filtration.

Lead-Free Guarantee (NSF/ANSI 372)
Certified lead-free materials to keep your water worry-free.

You Also Like

Customers praise this gravity-fed filter for eliminating chlorine and contaminants with "great tasting water." The 2.25-gallon capacity and stainless steel construction earn high marks. Some note vague instructions, extra parts, and height concerns. A few mention slow filtration and wish for larger size or dual filtration options.

  • Works very well at eliminating contaminants and providing clean water on demand.
  • Water tastes great. Easy to assemble and fill. I definitely recommend it!
  • This unit filters as promised and the water tastes great!
Filters (positive)Taste (positive)Water (positive)Capacity (positive)Stand (positive)
  • 5 stars: 43 (84%)
  • 4 stars: 7 (14%)
  • 3 stars: 1 (2%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
S
S.
Nice

We picked this up to have incase of emergency.
Everything looks and feels well made.
We are glad it has a stand, we saw some systems did not include a stand.
We are pleased and would buy again.

R
R.
Clean water

This is a beautiful piece of equipment that is easy to put together and easy to use. It actually seems smaller to me than I would have expected (which is a good thing). I haven't had any issues with it, it works well and the water comes out tasting great. It's a good thing to have on hand for camping but especially good to have for emergencies.

N
N.
Works very well

This unit filters as promised and the water tastes great! It gets four stars just because it's too tall. If it was more compact, I'd like it better. That's the only thing I don't like about it.

This filter is going strong and giving us great tasting, clear water! I haven't had to replace the cartridges yet, either. I'll buy replacement components if I need them. This gravity fed filter is a fantastic investment.

A
A.
Definitely makes my water taste much better.

My local city water runs a TDS of about 300, but the taste, especially in summer, is terrible. I popped this filter out of the box, set it up with only a little fuss (the washers!) and put it in service. I did run water through the unit to make sure that we were free of any debris and manufacturing bits, then gave it a taste. The water no longer had the strong chlorine taste or other off flavors or odors, more of a "nothing" taste of generally well-filtered water. I have tried Brita and other countertop filters and was unable to fully clear the chlorine with any of them, so I am quite satisfied with the performance of this filtration unit.

W
W.
Purified drinking water is a must have. This is a good way to get some.

I didn't post any pictures because the ones the vendor posted are very good and accurate.

I have been using gravity type water filters/purifiers for a few decades now. I wouldn't be without one.
If you actually research what is in your city, town or well water - it will scare you.
You need something like this to ensure your water is free from things like lead, chlorine, heavy metals, medical waste including medicine, micro plastics, floride - the list goes on and on.

This filter system is exceptionally well made and comes with everything you need to get going. It includes the filters, stand and a spigot with a sight glass. Super easy to use and once you use one of these you will never drink or cook with tap water again.

I think these things are great. This one has terrific build quality and I absolutely consider it a good value.

A
A.G.
Produces Excellent Water

This is my second one of these. The first one works fine but, and this is true of this one as well, if you fill up the top half too much, after the bottom is full, it leaks at the seam between the two halves. So I wanted one with a Sight Glass so I could see how full the bottom half is. As with the original, the directions are a bit vague and that is compounded by the fact that there is a set of instructions that comes with the unit, then another set with the filters and they don't exactly agree. Also some seemingly extraneous parts but after doing this for a second time, it makes a lot more sense. Still, the directions should be clearer. Plan on spending about 45 minutes putting this together, 15 actually assembling the parts and 30 minutes soaking the filters. We already have pretty good water from our well but this helps ensure that any ground contaminants are removed and gives a bit of added protection. It's not inexpensive but cheaper than bottled water but a lot and less expensive than the name brand units.

K
K.D.
Works okay!

It was very easy to put together and looks great anywhere. I do wish it was bigger

D
D.
No need to by bottles of drinking water anymore!

Our water taste and smelled horrible so I have been buying bottled water for drinking for a long time. After getting this water filtration system I no longer have to buy bottled water. It was fairly easy to put together after reading the directions. It came with everything I needed to install it. Now I have good tasting water and not have all those plastic bottles to recycle. This unit is a little expensive but over time it will pay for itself and it will help save our planet.

J
J.D.
No plumbing needed

Wow! No under cabinet plumbing needed, this was a big plus for me. Water filter can be moved easily from room to room and no need to plug up to power. If you loose power during a storm water can still be filtered. I am filtering city water with plenty of chlorine in it. So far system is working good and water tastes has improved.

I
I.
Great for filtering tap water

I like that this doesn’t require me to permanently install anything, and the filters are easy to change. I would highly recommend you this water filtration system. The window on the front near the spout is one of the best things I have seen on these types of filters, and I have tried my fair share of them out. I love that I can see when I need to add more water without having to open it up and look in, especially since I am short and that required a stool. I am also very happy that it is all stainless steel, so I don’t have to worry about it rusting out, or plastic leeching into my water. This does a great job giving you nice potable, drinking water that doesn’t have that nasty chlorine taste and smell.

N
N.W.
Works great and is the perfect size for camping, an RV, or for a smaller family.

This water filter system looks and works just like our Berkey system. It does a great job of filtering the water and it’s the perfect size to take with us on campouts. I really like that the spigot is stainless steel and that it comes with the glass water level indicator. It even comes with a stand to hold it up off the table to make filling glasses easier.

The main thing to remember is that the filters need to be primed before use or it will work very slowly until the entire filter is permeated with the water. I have a handheld primer that I use with my other filters that made quick work of it, but the priming instructions that came with this system don’t work with the type of faucet that I have.

After use, if you’re going to store the system and the filters (like I do after camping trips), the filters need to be drained and dried so that they will store without molding. This is where the hand primer comes in handy again.

The water from this system tastes great and it is so convenient to have where water quality may not be ideal. My grandchildren were able to easily work the spigot without spilling or making a mess. The whole system stores compactly within itself for when you don’t need it. This is also a great option for daily countertop use.

Remember that this is a gravity fed filtering system and don’t overfill it. You shouldn’t fill the top unless there is room in the bottom for the water or it might overflow at the seam (which isn’t sealed). You should also try to avoid letting the filters dry out completely unless you are getting ready to store it. The system comes with the tools necessary to secure the filters as well as remove them for storage.

W
W.S.
Love this!

It's well worth the money

C
C.C.
This system removes all the bad smells and tastes so much better!

Our tap water is terrible & smells like chlorine--this system removes it all and tastes so much better!

a
a.
What I think

I'm delightfully surprised how easy it is to put together I have yet to use it fully but it's so practical because you can put it up take it apart and take it with you.

N
N.K.
Easy to use.

Since we can't see our water tank in a camper we choose to use this.
No problems at all.
Once the filter is primed its a breeze to just fill and forget till we need it.
Sometimes we fill multiple jugs throughout the day just to have plenty of water on hand.

J
J.L.
It’s tall but definitely worth the money. Super easy to set up

Love this item!

J
J.F.
Perfect size!

Love it! Water tastes good!

L
L.
Perfect

This water filter is awesome I originally wanted a berkey but it’s too big for my kitchen space also the price was a bit high. I need filter water for sourdough baking and also I like to fill up a pitcher and put in refrigerator for cold water through the day. This system was easy to put together, no leaking, water tastes great. It also came with two spout to choose from plastic or metal I chose the metal. I love this and recommend for a small space or just a starter size

C
C.J.
It works great with great customer service.

This unit filters the water very quickly. However, when I tested it with my TDS meter it showed 149 ppm. Their information inside the package says it will not register properly with a TDS meter. I wrote to the manufacturer by email to ask how I would test it. And they returned my message and handled the problem efficiently and quickly. About a month later it seem to not be draining properly and again they answered my email quickly and resolved my problem. I give this product and customer service five stars. The taste of the water is perfect. I have been camping and on the road so it works very well for me.

K
K.
Good product!

Works good. Easy to setup. Improves water quality.

C
C.
Doe a great job. Water tastes good.

It was a little hard to assemble and I had a leak at the spigot. I tightened that up and used one filter. After the first gallon and a half filtered through, the next two tanks tasted better and filtered faster. I am pleased with this product.

S
S.
Recommend!

Please skip all the plastic water filters and use steel filter i have been using it for 8 months and this purewell filter is perfect.

B
B.
Excellent filter

Very pleased with our purchase. My wife and I were looking for a water filter that would provide clean tasting water for our family. We were looking for something that would filter out metals and plastics. This was definitely a smart purchase.

E
E.
Works fine!

Berkey is constantly out of filters on their website plus their cost is outrageous. I took a chance with these and they work just as well, water tastes clean, fit is great and water filters about the same speed.

Z
Z.
Quality Filter!

Good looking filter. Water tastes great. Have not done any tests, but I will likely use these again.

N
N.L.
Good Berkey alternative!

This system is an excellent value compared to authentic Berkey replacement filters. I can't really say if they are as effective as authentic Berkey filters because I have no way of testing the water. For that matter, I cannot verify if authentic Berkey filters are as effective as they claim either. They seems to be working as expected and that's about all I can report about this product.

S
S.
Worth a look.

Looking for a cheaper alternative to those stupid expensive OEM filters. This one is worth a look.
It’s constructed well and installed easily in my setup. I can’t vouch for the silver content. I may seal it up and let it sit after its end of life to see if it maintains its anti microbial claim. I always pretreat (drops of bleach) and prefilter (fine mesh or cloth) for good measure and to increase filter life. It did fine in improving the taste of tap water. I’d say as good as my fridges filter when new. I’ll have to see how it does does in the wild.
Give it a try. I think you’ll be happy.

A
A.
Much better water!

Perfect. Just what I needed as our well water has a bit of a taste to it. These filters improve the taste of my water immensely. The filters were very easy to install, and function very well. The water comes through quickly. The price is reasonable for the great taste of my water and the quality is great. I highly recommend them.

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