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Large selection of replacement water filters, reverse osmosis membranes, testing kits and water filtration repair parts.  From one water filter or reverse osmosis membrane to case quantity discounts.
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Replacement water filters and reverse osmosis membranes - Discover accepted Replacement water filters and reverse osmosis membranes -Amex accepted  
water filters reverse osmosis membranes


Pentek Under Counter Water Filtration Systems - Replaces The Ametek and Pentek   Water Filter Systems


Connectors are optional and are shown near the bottom of the page.   See more John Guest or Jaco fittings and parts

Water Filter Housing - Slimline 10 Inch
 


Price Each: $19.99
Sale Price: $17.99
Savings: $2.00

Mounting Braket

FNPT Port Threads

Filter Housing Wrench

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Water Filter Housing - Slimline 10 Inch

Water Filter Housing - 10" Slimline replacement filter housing. Choose 1/4" or 3/8" Female FNPT threaded ports. No pressure relief valve. Great as a stand alone water filter or as a replacement for broken sumps on RO systems. Cheaper than some sumps alone and assures that you can complete the repair of a broken sump on a RO system. There are many different thread patterns on the sump / cap assemblies. A mismatch may cause a leak. This housing uses a very common thread pattern. If the sump does not work as a replacement then also replace the housing cap. This will assure a perfect fit.

See 9 3/4" Sediment Prefilters
See 9 7/8" Sediment Prefilters
See 9 3/4" Carbon Filters

Pentek 158220 SlimLine Water Filter Housing
 


Price Each: $19.99

Mounting Bracket

Filter Housing Wrench

Color

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Pentek 158002 SlimLine 5 Inch Water Filter Housing

Pentek 158002 SlimLine 5" Water Filter Housing. 3/8" Female NPT Threads. For 5" replacement water filter cartridges. Built in pressure relief valve provides easier filter changing.

Sediment Pre Filters  5"
Taste & Odor Carbon Filters 5"

US Filter Pentek 158005 Slimline Blue Filter Housing
 


Price Each: $19.99

Mounting Bracket

Filter Housing Wrench

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US Filter Pentek 158005 Slimline 10 Inch Blue Filter Housing

US Filter Pentek 158005 Blue Slimline 10" Filter Housing - Includes pressure relief button for easy filter changes. For 10", 9 7/8" & 9 3/4" replacement filter cartridges. - 3/8" Female NPT Threaded Ports. Typical housing for use in replacing a damaged RO filter housing or for a single stage filter for POU (point of use).

See 9 3/4" Sediment Prefilters
See 9 7/8" Sediment Prefilters
See 9 3/4" Carbon Filters

US Filter Pentek 158007 Slimline Clear Filter Housing
 


Price Each: $29.99

Mounting Bracket

Filter Housing Wrench

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US Filter Pentek 158007 Slimline 10 Inch Clear Filter Housing

US Filter Pentek 158007 Slimline 10" Clear Filter Housing - Slimline Filter Housing - 3/8" Female NPT Threaded Ports. Includes pressure relief button for easy filter changes. For 10", 9 7/8" & 9 3/4" replacement filter cartridges. - Typical housing for use in replacing a damaged RO filter housing or for a single stage filter for POU (point of use).

See 9 3/4" Sediment Prefilters
See 9 7/8" Sediment Prefilters
See 9 3/4" Carbon Filters

Pentek 244047 SlimLine Water Filter Housing Mounting Kit


Pentek 244047 SlimLine Water Filter Housing Mounting Bracket Kit


Price Each: $6.99

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Pentek 244047 SlimLine Water Filter Housing Mounting Bracket Kit. For all 5", 10" & 20" Pentek SlimLine Water Filter Housings. Bracket and screws.

Pentek / Ametek / US Filter BFS-201 Water Filter System
 


Price Each: $69.99

Inlet Valve

Faucet - Non Air Gap

Connectors (pair)

Filter Cartridges

Filter Housing Wrench

1/4" Tube

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Pentek / Ametek / US Filter BFS-201 Water Filter System Pentek 160196

Pentek / Ametek / US Filter BFS-201 #160196 Water Filter System With Two 10" Slim Line Housings. Comes Mounted On Hanging Bracket. Integral pressure relief button for easy filter changes. 3/8" FNPT Ports. Filters Optional And Additional. 14" X 10" X 4 1/2"

See 9 3/4" Sediment Prefilters
See 9 7/8" Sediment Prefilters
See 9 3/4" Carbon Filters

Ametek / US Filter / Plymouth / Pentek / Culligan / Kleen Plus / American Plumber / Bruner / Many Other Brands Compatible O-Ring For Slim Line Water Filter Housing # 151121


Pentek # 151121 O-Ring For Slim Line Water Filter Housing Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands


Price Each: $4.99

Dow 111 Silicone Sealant

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Pentek # 151121 O-Ring For Slim Line Water Filter Housing Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. O-Ring For Slim Line Water Filter Housing. Buna-N FDA Grade. (Slim Line Housings Use A 3 1/2" diameter "O" Ring) Ametek # 151121 Same as Culligan OR-38 O-ring.

Be Sure To Order Dow 111 Silicone Sealant To Help Prevent Leaks!

Ametek / US Filter / Plymouth / Pentek / Culligan / Kleen Plus / American Plumber / Bruner / Many Other Brands Compatible SW-1 Slim Line Water Filter Housing Wrench # 150294


Pentek SW-1A # 150539 SW1 Slim Line Water Filter Housing Spanner Wrench Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands


Price Each: $6.99

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Pentek SW-1 # 150539 SW1 Slim Line Water Filter Housing Spanner Wrench Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. SW-1 Water Filter Housing Wrench. Fits 4" Slim Line Housings. (Slim Line Housings Have A 3 1/2" diameter "O" Ring) Ametek # 150294 Only for use in loosening filter housings, never to tighten. Overtightening may cause damage to the O-rings and make re-opening VERY difficult. Hand tighten only. Fits most standard style RO systems. Replaces 150294. For really stubborn filter housings our technicians will use two wrenches together for maximum power where one wrench might break or not do the job. Our techs know the tricks.

Order New O-rings And Be Sure To Lube Them With Dow 111 Silicone Sealant To Prevent Leaks

Dow Corning  111 5 gram O-ring Silicone Lubricant and Sealant - Be sure to lube your O-rings to help prevent leaks.


Dow Corning (Molykote) 111 6 gram O-ring Silicone Lubricant and Sealant - Be sure to lube your O-rings to help prevent leaks.


Price Each: $3.99

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Dow Corning/Molykote 111 6 gram O-ring Silicone Lubricant and Sealant - 6 gram pillow pack. (like a ketchup packet) Great O-ring sealant and lubricant. FDA and NSF approved. (Do Not Use Petroleum Jelly As It May Break Down O-rings Or Housings) This is the same premium grade silicone sealant and lubricant used in underwater photography cameras, scuba gear and other underwater applications that simply can't afford leaks. Why not use the best for your reverse osmosis or drinking water filtration system?

Dow 111 Silicone MSDS Safety Sheet

John Guest Super Speedfit Quick Connector - Male - Straight


John Guest Super Speedfit Quick Connector - Male - Straight


Price Each: $4.99

Tube - Thread Size

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John Guest Super Speedfit Quick Connectors - Male - Straight - MNPT - Sold in pairs. Price is per pair. These fittings are manufactured in gray acetal copolymer with food grade nitrile o ring, making them especially suitable for applications involving foodstuff and potable liquids like reverse osmosis drinking water. They are equally suitable for air and inert gasses and can therefore be used on CO2 lines, pneumatic applications, and vacuum. For more than a decade, John Guest has been supplying Super Speedfit fittings to the Water Purification market for drinking water applications in homes, restaurants and industry. John Guest products are listed with the WRC(UK), NSF(US) and SK(Germany). PI010821S , PI010822S , PI010823S, PI011222S , PI011223S

See John Guest quick connector User Instructions

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John Guest Super Speedfit Quick Connector - Male - Elbow


John Guest Super Speedfit Quick Connector - Male - Elbow


Price Each: $4.99

Tube - Thread Size

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John Guest Super Speedfit Quick Connector - Male - Elbow - John Guest Super Speedfit Quick Connectors - Male - MNPT - Sold in pairs. Price is per pair. These fittings are manufactured in gray acetal copolymer with food grade nitrile o ring, making them especially suitable for applications involving foodstuff and potable liquids like reverse osmosis drinking water. They are equally suitable for air and inert gasses and can therefore be used on CO2 lines, pneumatic applications, and vacuum. For more than a decade, John Guest has been supplying Super Speedfit fittings to the Water Purification market for drinking water applications in homes, restaurants and industry. John Guest products are listed with the WRC(UK), NSF(US) and SK(Germany). PI480821S , PI480822S , PI480823S , PI481222S , PI481223S

See John Guest quick connector User Instructions

Check Quick Connector Sizes

Elbow Connector Fitting - 90 degree


Jaco Elbow Connector Fitting - 90 degree - Sold As a Pair


Price Each: $4.99

Tube/Thread Size

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Jaco Elbow Connector Fitting - 90 Degree - Sold as a Pair. Tube x MNPT Thread Sizes.

See Jaco Fitting User Instructions

Check Post Water Filter Connector Sizes

Straight Tube Connector Pair


Jaco Straight Tube Connector Pair


Price Each: $3.99

Tube/Thread Size

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Jaco Straight Tube Connector - Sold as a pair. Easy to install and use.

See Jaco Fitting User Instructions

Check Post Water Filter Connector Sizes

TDS Meter - Test For Total Dissolved Solids In Water - Reverse Osmosis Membrane Tester - TDS Meter


TDS Meter - Test For Total Dissolved Solids In Water - Reverse Osmosis Membrane Tester - TDS Meter


Price Each: $37.99

Calibration Solution

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TDS Meter - Tester. The Only Way To Know If Your Reverse Osmosis RO Membrane Is Performing Correctly - Tests for TDS - Total Dissolved Solids. A Must For All RO System Owners. Compare Incoming Feed Water To Treated Water - Replace Membrane If Less Than 80% of TDS Is Being Removed - Total dissolved solids (TDS) are the total weight of all solids (minerals, salts or metals) that are dissolved in a given volume of water expressed in milligrams per liter (mg/L), or in parts per million (PPM). The lower the TDS level in the water, the more efficiently your body's cells actually get hydrated by the water that you drink. The higher the TDS levels in the water, the greater the probability of harmful contaminants that can pose health risks or hinder the absorption of water molecules on the cellular level. 17 PPM of TDS = 1 grain of hardness. Highly efficient and accurate due to its advanced microprocessor technology. Hold Function: saves measurements for convenient reading and recording. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Measurement Range: 0-9990ppm. From 0-999ppm, the resolution is in increments of 1ppm. From 1,000 to 9,990ppm, the resolution is in increments of 10ppm, indicated by a blinking 'x10' image. Display: large and easy-to-read LCD screen. Factory Calibrated: recalibration is not necessary, but can be done easily with a watch screwdriver. There's no need for messy solutions to initially calibrate the meter. Range: 0 - 9990ppm (mg/L) Accuracy: +/- 2% ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50 degrees Celsius (33 to 122 degrees Fahrenheit) Power source: 2 x 1.5V button cell batteries (included) Battery life: over 1,000 hours of continuous use Dimensions: 14 x 2.3 x 1.5cm (5.5 x .9 x .55 inches) Weight: 32g (1.13 oz) Simple to use for Reverse Osmosis membrane monitoring. Measure the incoming water and the RO water. Divide the larger number into the smaller number and subtract that decimal from 1. The resulting decimal is the percent of TDS that the membrane is removing. We really like this tester and think that anyone who wants to know about the quality of their water should have one of these TDS Meter Testers.

Learn more about using TDS meters and total dissolved solids

Replacement Non-Air Gap Pure Water Faucet - Calif. Low Lead Level
 


Price Each: $19.99

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Adaptor for 3/8" Feed Tube

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Replacement Non-Air Gap Pure Water Faucet - Calif. Low Lead Level

Replacement Non-Air Gap Pure Water Faucet - Calif. Low Lead Level. Has one single tube connection. 7" high. Long reach - Extends 5 1/2" from center of faucet.

John Guest Poly Tubing For Pure Drinking Water Systems
 


Price Each: $0.40
Sale Price: $0.27
Savings: $0.13

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John Guest Poly Tubing For Pure Drinking Water Systems

John Guest Poly Tubing For Pure Drinking Water Systems - 1/4", 3/8" and 1/2" O.D. (Outer Dimension) High Grade Drinking Water Tubing. Speedfit quick connector compatible. Choose the 3/8" O.D. For Use With Optional Drain Saddle For Air Gap Faucet. Sold by the foot. Order 20 to get 20 feet.

Self Piercing Feed Water Tap Valve
 


Price Each: $8.99

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Self Piercing Feed Water Saddle Tap Valve

Self Piercing Feed Water Tap Valve With 1/4" Comp - Saddle valve used on copper lines instead of the "screw together" easy tap described above. Make sure to install it in-line after the cold water shut-off valve. Mount and tighten the self piercing valve on the copper line in a easy to reach place. Turn the saddle valve clockwise all the way in. This drives the sharp end of a sharp metal pierce into the copper tubing and will pierce a tiny hole. This is the "OFF" position for your new RO system. Turn counter-clockwise to open and turn on.

Easy Tap Water Feed Valve
 


Price Each: $12.99

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Easy Tap Water Feed Valve

Easy Tap Water Feed Valve - High flow tap valve. Follow the pipe up from the shut-off valve toward faucet until you reach a coupling nut (may be all the way up to the faucet). Unscrew coupling nut. Screw brass easy tap onto previous location of coupling nut. Hand tighten and then one more complete turn with wrench. Re-attach water line coupling nut to easy tap. The valve on the side of the easy tap is the shut off valve for your new RO system. If the handle is turned clockwise all of the way, this is the "OFF" position for your new RO system. Counterclockwise all of the way is the "ON" position.

John Guest  inline shut off valve
 


Price Each: $9.99

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John Guest inline shut off valve

John Guest inline shut off valve - Easy to install push in quick connectors. PPSV040808W and PPSV041212W

See John Guest quick connector User Instructions

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Choose Replacement Water Filters From US Filter (Pentek), Osmonics and KX Matrikx
 


Be sure to check our Parts Department for important parts such as TDS Testers, Replacement Faucets, O-rings, Housing Wrenches and more parts for your pure water filtration system.


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Replacement water filters and reverse osmosis membranes