UF22 Reverse Osmosis System

Compatible Replacement Water Filters & Reverse Osmosis RO Membrane. 9757, 18773, 9568

Replacement Filters Reverse Osmosis RO Membranes, Pumps, Testing Supplies

We Ship To United States and Territories Only.

Shop By Category
Home Page
Search Our Site
Replacement Water Filters
Reverse Osmosis Systems
Reverse Osmosis Membranes
Components & Fittings
Reverse Osmosis RO Holding Tanks
Installation Supplies
Reverse Osmosis Accessories
UV Systems & Lamps
Water Testing Supplies
Contact Us
Sales & Return Policy
Instructional Videos
Reverse Osmosis Troubleshooting Guide
RO Membrane Identification and How To Upgrade
Filter Change Instructions
Manuals & Downloads
Read What Our Customers Have To Say About Purewater4u.com!
We Accept:
American Express Card
Visa Card


UF22 Reverse Osmosis
Compatible Replacement Water Filters & Reverse Osmosis RO Membrane

1. 9757, Carbon Block Prefilter
2. 18773, Carbon Block Post Filter
3. 9568, 22 GPD TFC Reverse Osmosis Membrane

Rainsoft® 9757 Compatible Carbon Filter. (13119, 9757, 9531, 18557, 17368, 12464)

Omnipure OMB934XF Carbon Block 10 Micron Filter

Omnipure OMB934XF Carbon Block Filter. (OMB934-10M)
Made In U.S.A.
For over 30 years Omnipure has been one of the leaders in water filters. This Omnipure 10 Micron Carbon Block filter offers a 10,000 gallon chlorine removal capacity to protect TFC RO membranes from the damaging effects of chlorine as well as making the water taste better.
Visit The Omnipure Website 

Rainsoft® 18773 Compatible Carbon Post Filter

Omnipure 5 Micron Carbon Block Filter OMB934-5

Omnipure 5 Micron Carbon Block Filter; OMB934-5.

5 Micron Nominal Filtration
High Adsorptive Capacity and Efficiency
Efficient Sediment Filter
No Release of Carbon Fines
Competitively Priced vs. GAC Filters

Made In U.S.A.Omnipure filters are the most widely used carbon block devices in the world. OMB935-5 filters simultaneously remove free chlorine and organic chemicals that contribute to taste and odor while providing the particulate filtration and dirt-holding capacity of an efficient 5 micron nominal sediment filter. These filters are optimized for applications where they perform the role of both a sediment and activated carbon filter.

The extrusion process allows the production of a carbon block with more carbon, but a lower pressure drop. This enables a OMB934-5 filter to deliver extended life while removing sediment, chlorine, taste, odor and organic contaminants from water, aqueous solutions or suspensions. The OMB394-5 is ideal for use in residential and commercial water purification systems, food service, pre and post-RO systems. 9 3/4" long X 2 1/2" diameter. 20 per case, sold individually. 


Rainsoft® 9568 Compatible 22 GPD TFC Membrane. (9568, 9596, UF22, UF22T, UF20, 21176)

Made In U.S.A.Rainsoft® 9568 Compatible 22 GPD TFC Membrane. (9568, 9596, UF22, UF22T, UF20, 21176) TFC-RS9-22. PWRS22 

Rainsoft® 12944 O-Ring

151121 SL #237 Buna-N Replacement O-Ring for #5 & Slim Line Sumps. PURA/Hydrotech 34202027, EcoWater/Northstar 7170246.

O-RING for 10" & 20 Ametek/Plymouth SLIMLINE. Model: SLIMLINE HOUSINGS. Alternate Part number# A58004, 34202027, OR-38, 152031, W38-0R, 151121-66

For Ametek/Plymouth SLIM LINE 10" & 20" Filter Housing (1/4 - 1/2" cap, 6 ribs)
Buna-N FDA Grade 3 1/2" Diameter


Holding Tank Air Pressure Gauge

Reverse Osmosis Hiolding Tank Pressure Gauge

The number one reason for low water flow from a reverse osmosis system is low air pressure in the holding tank.

With this holding tank air pressure gauge you can easily check and maintain the holding tank air pressure to the required 8 PSI of air pressure to get your system up and running at its' peak efficiency.

Specially designed for use with low air pressure applications, this Holding Tank Air Pressure Gauge is a must for Reverse Osmosis Systems maintenance. 


TDS Meter

TDS-EZ Total Dissolved Solids TDS Meter

HM Digital, Inc., TDS-EZ Total Dissolved Solids Meter

The HM Digital EZ TDS meter is a must for reverse osmosis (RO) filter and membrane monitoring. Know when to change your pre-RO filters to extend the life of the RO membrane. Designed for home use, this pocket TDS meter comes with a 2 year limited manufacturer's warranty.Designed for the long haul, this compact TDS (Total Dissolved Solids) meter has been manufactured with a tough housing and large, easy to read LCD screen. It sports a measurment range of 0 to 9990 parts-per-million. Flip it over and the back side sports a handy color coded chart which classifies the water you are testing.The TDS-EZ is perfect for monitoring your reverse osmosis (RO) output water. Take the guess-work out of knowing when to change your filters! 



*These products are not manufactured by, sponsored by, endorsed by or affiliated with "Rain Soft-Aquion Partners, L.P." of Elk Grove Village, IL. RainSoft® is a registered trademark of Aquion Partners, L.P. of Elk Grove Village, IL, the manufacturer of RainSoft® brand water treatment equipment. These filters and membranes are manufactured by other companies. While these filters and membranes are compatible for use in RainSoft® brand water treatment equipment, we make no representation as to whether using these filters and membranes is consistent with the warranty applicable to RainSoft® equipment. 
Purewater 4U of Las Vegas is not associated or affiliated with RainSoft® or Aquion Partners Limited.
USPS Shipping to United States is never more than $13.65!

Stock Up And Save!

Using Our Shopping Cart Is Simple and Easy.
You do not have to add one item at a time.
Simply add a Quantity of each item you need in the Quantity Box and Click on any "Add To My Shopping Cart Button". 

All items selected will be added to your Cart at once!


RO Tubing
Water Softener Tubing
Ball Valves
Holding Tanks
RO Membrane Housings
Filter Wrenches
Auto Shut Off Valves
Flow Restrictors
Check Valves
Filter Clips
Feed Valve & Adaptors
Drain Clamps
RO & Softener Drain Line Adaptors
Air Gaps
Pressure Regulators
Relief Valves
Hammer Arrestors
Pressure Limiting Valves
Reverse Osmosis Membranes
Replacement Water Filters

Purewater4u.com supports Made In The U.S.A.!
Where possible, we offer USA made products. Look for this flag:

To View items in your Cart and/or make changes, please click here:
View/Modify Shopping Cart!

If you have items in your Cart and are ready to Checkout, please click here:
Proceed To Checkout!


*The replacement filters and membranes advertised on this site are not manufactured by the companies that manufacture the underlying water treatment equipment unless so noted.  Our use of registered trademarks, such as Culligan®, Kiss®, Premier Manufactured Systems® and others, is only for purposes of identifying compatible replacement filters and membranes, and does not suggest any association, sponsorship or endorsement of our our products by the manufacturers of the underlying equipment. "COMPATIBLE" Legal Disclaimer
Purewater4u.com is a trademark of Purewater 4U of Las Vegas, Inc. All other products mentioned are registered trademarks or trademarks of their respective companies. Proprietary contents contained herein are the sole property of Purewater4u.com and Purewater 4U of Las Vegas, Inc. and may not be reprinted, reproduced or transmitted in any form without written permission. Purewater 4U of Las Vegas, Inc., grants permission to electronically copy and to print hard copy portions of this site for the sole purpose of placing an order with or through Purewater4u.com, or using this site as a shopping resource. Any other use of materials on this site, including reproduction for purposes other than those noted above, modification, distribution, or republication, without prior written permission from Purewater 4U of Las Vegas, Inc. is strictly prohibited. Copyright © 1998 - 2018 Purewater 4U of Las Vegas, Inc. Las Vegas, NV, USA. All rights reserved.