PureGen ERO-435 and RO4-35 Reverse Osmosis System Compatible Replacement Water Filters and RO Reverse Osmosis Membranes

Four Stage Standard RO Water Filter Change Kit
Four Stage Standard RO Reverse Osmosis Replacement Water Filter Change Kit. (2) 5 micron sediment Pre Filters, (1) 10 micron Carbon Block Filter and (1) Inline GAC Post Filter. RO reverse osmosis membranes sold separately.
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$39.99 Special Price $33.99 As low as $27.99

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GE Osmonics ® Purtrex PX-5-978 Sediment Water Filter # 93023
GE Osmonics ® Purtrex PX-5-978 5 Micron Sediment Water Pre Filter. True-graded density pure polypropylene depth replacement water filter. # 93023 9 7/8" long X 2 1/2" diameter. 40 per case, sold individually. Order a case and save even more.
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$8.99 Special Price $5.99 As low as $3.99

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GGN-10-2-Block Premium Quality Carbon Block Replacement Water Filter
10 Micron Premium Carbon Block Filter. Replaces KX Carbon Block Water Filter # 10-250-190-975 Compatible Replacement. The perfect carbon block for your standard reverse osmosis system. Extruded Carbon Block Water Filter. 9 3/4" long X 2 1/2" diameter OD X 1 1/4" diameter ID. 20 per case, sold individually. Order a case and save even more. GGN-10-2-BLOCK
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$12.99 Special Price $9.99 As low as $7.79

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Omnipure ® CL-10RO-T/33 GAC Inline Replacement Water Filter
Omnipure ® CL-10RO-T/33 inline GAC carbon water filter replacement cartridge. 1/4" (-B) or 3/8" (-C) FNPT (Female National Pipe Thread) connections. Replacement Jaco connectors and John Guest Speedfit connectors available separately for 1/4" or 3/8" tube. 25 per case, priced and sold individually. Order a case and save even more.
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$21.99 Special Price $11.99 As low as $9.49

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Dow Filmtec ® TW30-1812-36 RO reverse osmosis membrane # 80719
Dow Filmtec ® TW30-1812-36 TFC 36 GPD RO reverse osmosis membrane - standard size 1.75" X 11.75" Part # 80719
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$99.99 Special Price $59.99 As low as $39.99

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Dow Filmtec ® TW30-1812-50 RO reverse osmosis membrane # 80722
Dow Filmtec ® TW30-1812-50 TFC 50 GPD RO reverse osmosis membrane - standard size 1.75" X 11.75" Part # 80722 Learn How To Upgrade Your Reverse Osmosis Membrane Capacity
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$84.99 Special Price $69.99 As low as $54.99

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Inline reverse osmosis membrane flow restrictor
Premium inline reverse osmosis membrane flow restrictor - Our in-line capillary flow restrictors are simple to install. Simply push the 1/4" poly tube firmly into the quick connectors and you are done. Be sure that you order the flow restrictor size to match your reverse osmosis membrane size. Arrow on side points toward the drain. Very simple to install.
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$33.99 Special Price $19.99 As low as $14.99

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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
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
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$9.99 Special Price $6.99 As low as $4.99

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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
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.
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$5.69 Special Price $4.99 As low as $3.00

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Dow Corning (Molykote) ® 111 6 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 - 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

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$5.99 Special Price $3.99 As low as $1.79

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Pro Products Sani System Water Filtration System Sanitizer
Sani-System ® Pro Products is proud to introduce Sani-System, the first and only EPA product approved for sanitizing water softeners, RO units and Water Coolers. Alos NSF certified. Sani System is proven to kill 99.9% of E. coli, E. coli O157:H7, Staphylococcus aureus, Listeria monocytogenes and other harmful bacteria. It does not use chlorine, other oxidizers or acids that can harm water softener equipment parts. Use is simple; each dose comes in a pre-measured pouch. Just cut, pour and regenerate softener. No measuring, No mess! Sanitizing Equipment! Applications Interior Surfaces of Water Softeners, Reverse Osmosis (RO) Units, Ice Machines, Water Coolers, Water Holding Tanks and Pressure Tanks. Pro Products Sani System Sanitizer. 0.25 fl. oz. concentrate is perfect for your RO reverse osmosis drinking water system sanitizing..
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$7.99 Special Price $4.99 As low as $2.49

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Chrome Air Gap Faucet - Long Reach GGN-FAUCET-AG-P
Chrome Air Gap Faucet - Long Reach GGN-FAUCET-AG-P

The perfect replacement faucet for under sink reverse osmosis drinking water systems. Works as air gap or non air gap. Quick release when drawing a glass of water or lock it on to fill a pitcher or cooking pot. This is a top selling replacement faucet for most reverse osmosis systems.
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$39.99 Special Price $29.99

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Puroflo FLR-868 Chrome Non-Air Gap Faucet
Puroflo FLR-868 Long Reach Chrome Non-Air Gap Premium Faucet is NSF Certified. Smooth operating ceramic disk design with 12" High Reach Neck Design. California Prop. 65 and AB1953 compliant. Low Lead Level
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$41.99 Special Price $29.99

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Stainless Steel Designer Faucet for RO Reverse Osmosis & Drinking Water Filtration Systems
Stainless Steel Designer Faucet for Drinking Water Systems. Beautiful designer faucet for beautiful kitchens. Air Gap / Non Air Gap design, single or three tube connection. Made of high quality 304 stainless steel incorporating a smooth operating ceramic disk element for extended reliability and quality. Great replacement upgrade for RO Reverse Osmosis and drinking water filtration systems. Lever Style Handle. High Reach Neck Design (12" / 305mm) 360 Degree Swivel Neck. Unique Protective Spout Tip which Prevents After Drip. 2 1/4" Base Diameter (57 mm) Drilled Hole Size Needed is 7/8".
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$219.99 Special Price $89.95

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4 Gallon Reverse Osmosis Water Tank Replacement - GGN-Tank-4-Pro 3.2
4 Gallon Reverse Osmosis Tank GGN-Tank-4 Pro 3.2. This is the perfect replacement tank for most RO reverse osmosis systems. Stainless Steel valve connector. Perfect replacement for all home RO reverse osmosis drinking water systems.
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$79.99 Special Price $49.99

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4 Gallon Water Tank for RO Reverse Osmisis Drinking Water Systems - GGN-Tank-PL4
4 Gallon Water Tank for RO Reverse Osmosis Drinking Water Systems - GGN-Tank-PL4- Plastic 4 Gallon (15L) Water Storage Tank. 10.83" Diameter X 16.15" Height. NSF Certified. UPC #850901003514
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$79.99 Special Price $49.99 As low as $44.99

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SS Stainless Steel Reverse Osmosis Storage Tank - Premium Quality
SS Stainless Steel Reverse Osmosis 4.4 Gallon Total Capacity Tank

This is one of the finest RO tanks we have ever seen. The patented O-ring seal on the air stem assures "set and forget" pressure settings. Keeping the pressure in the tank set correctly is an important factor in operating your RO system. Approximately 14" high (without the tank valve) X 11" in diameter.
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$149.99 Special Price $88.99 As low as $75.99

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Air pressure gauge for reverse osmosis water accumulator tanks
Air pressure gauge for reverse osmosis water accumulator tanks - Specially calibrated for reverse osmosis system tanks. Scale from 1 to 20 PSI. Large scale reading over small PSI range allows optimum accuracy. Just like car tires lose air pressure, so does the bladder of your reverse osmosis water accumulator tank. Improper tank air pressure will cause your system to operate improperly. This is a must for all reverse osmosis system owners.
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$24.99 Special Price $17.99 As low as $12.99

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Inversion Tank Stand Reverse Osmosis System
Inversion Stand for Water Tank on Reverse Osmosis Systems. Flip the tank over and remove the weight of the water from the bladder. Pressure and storage capacity are unchanged. Extends the life of your reverse osmosis water tank.
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$27.99 Special Price $17.99

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TDS Meter Inline Tester- Dual Mode Reading - Easily Installs Inline - Very Simple To Use
TDS Meter - Dual Mode - Installs Inline - Check the TDS level with the push of a button. Now you can easily check to make sure the water from your reverse osmosis system is top quality. Measure the tap water coming in vs. the purified water going out of your system at any time. Very easy installation. FEATURES Displays TDS levels of the feed water and product water with in & out electrode probes. Highly efficient and accurate due to its advanced microprocessor technology. Auto-Off function conserves battery power. The unit shuts off automatically after 10 minutes of non-use. Comes equipped with John Guest Quick-Connect T-fittings as shown. Installs quickly and easily. SPECIFICATIONS Range: 0-9990 ppm Accuracy: ±2% Always know if your RO membrane is performing correctly!
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$49.99 Special Price $39.99 As low as $19.99

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TDS Meter - Test For Total Dissolved Solids In Water - Reverse Osmosis Membrane Tester - TDS Meter
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 - 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. Simple to use for Reverse Osmosis membrane monitoring. 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 to monitor their RO membrane.
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$49.99 Special Price $37.99 As low as $17.99

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Inline Check Valve - Back Flow Prevention
Inline Check Valve - Back Flow Prevention - Check Valve- 1/4" quick connect - one way flow, Easy to install. 1/4SCV and 3/8SCV or John Guest Elbow Fitting for Membrane Housing.
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$27.99 Special Price $19.99 As low as $17.99

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Standard size RO reverse osmosis membrane housing
Standard size RO reverse osmosis membrane housing - 90° Ports with 1/8" FNPT Threads - Includes New O-rings and 3 90° 1/4" Jaco Fittings For 1/4" O.D. Tube. Upgrade to the optional John Guest Quick Connectors. The end with a single port is the inlet feed water. On the end with two ports the center port is the permeate (product) water. The offset port is the brine (waste).
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$34.99 Special Price $19.99 As low as $16.99

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Automatic Shut Off Valve for reverse osmosis system - ASO ASV
Auto Shut Off RO 1 - Automatic shutoff valve for reverse osmosis systems. ASO ASV Easy to use 1/4" OD Tube Jaco connectors included. - The "in & out" markings are on the top of the valve. The top side of the valve is the high pressure side and the bottom side is the low pressure side. The high pressure from the filter housings goes to the "in" on the top of the valve. Then the high pressure "out" goes to the membrane housing "in". The membrane housing low pressure "out" connects to the "in" on the bottom side of the valve. The "out" on the bottom goes to the tank. The valve automatically shuts off production when the tank pressure reaches approximately 65% of the incoming line pressure.
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$28.99 Special Price $19.99 As low as $15.99

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Filtamate 85 PSI APEX Inline Water Pressure Regulator With 1/4" Quick Connections
APEX Filtamate 85 PSI Inline Pressure Regulator. 1/4" Quick Connectors. Great inline pressure regulator to prevent excessive pressure from reaching your RO Reverse Osmosis system or other sensitive water equipment. Helps prevent water spikes, or surges, that can lead to system failure or leaks.
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$34.99 Special Price $22.99 As low as $19.39

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John Guest ® Poly Tubing 1/4" For Pure Drinking Filter Water Systems
John Guest ® Poly Tubing 1/4" For Pure Drinking Filter Water Systems
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$0.45 Special Price $0.27 As low as $0.19

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Inline Water Shut Off Valve - Great For Refrigerators And Ice Machines
Inline Water Shut Off Valve With 1/4" or 3/8" Quick Connect Fittings - Very easy to install and use. - Great for refrigerators, UV systems, chillers, hot pots, coffee machines, ice machines etc.
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$14.99 Special Price $9.99 As low as $6.99

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John Guest ® Tube Cutter - TSNIP
John Guest ® tube cutter TSNIP - Great for making a perfect cut everytime. Helps prevent leaks by making a square end cut ensuring proper fit and seal in water connecttion fittings. A real must for any professional or discerning home owner.
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$17.99 Special Price $12.99 As low as $10.99

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John Guest ® Super Speedfit Quick Connector - Male - Elbow
ohn 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
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$8.99 Special Price $4.99 As low as $3.99

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Jaco ® Elbow Connector Fitting - 90 degree - Sold As a Pair
Jaco ® Elbow Connector Fitting - 90 Degree - Sold as a Pair. Tube x MNPT Thread Sizes.
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$8.99 Special Price $4.99 As low as $3.99

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John Guest ® Tee Connector For Water Systems - Quick Connectors
John Guest ® Tee Connector - Quick Connectors - All equal size connections or one port different for adaption. The body is produced in acetal copolymer. 'O'Rings are nitrile rubber. The collet is produced in acetal copolymer with stainless steel teeth. PI0208S , PI0212S , PI301208S , PI301612S.
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$14.99 Special Price $9.99 As low as $7.99

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Teflon Plumbing Tape To Seal Threaded Water Connectors
PTFE thread sealant tape permits quick, clean, economical sealing of male pipe threads of all sizes. Reduces the risk of system contamination common with liquid and paste sealants. A must use on all male threads used in reverse osmosis and pure drinking water filtration systems.
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$5.99 Special Price $3.39 As low as $2.75

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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.
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$19.99 Special Price $12.99 As low as $9.99

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John Guest ® Angle Stop Water Valve
John Guest ® Angle Stop Water Valve - Makes installation a snap. Very simple to use. PPASV121208W and PPASV121212W
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$19.99 Special Price $12.99 As low as $10.99

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Chiller Daddy CHL-750XL Under Sink Water Chiller - 110 Volt
110 Volt Chiller Daddy ® CHL-750XL Under Sink Water Chiller - NEW TANK IS 25% LARGER than our previous chillers. Output Cold Tank Volume : 3 liter (0.8 gallon) Exterior cabinet is made of RUST FREE 304 SS Stainless Steel. Cold Water Container is made of SUS304 Stainless Steel. Inlets and outlets are 1/4" stainless steel 304. Includes a pair of quick connectors for a simple hook up. Output of Cold Water : 1.34 Gallons Per Hour (5 Liters 5L/H (<10C) Continuous Cold Water Output(cc/hr) 5,400. This is a high output, heavy duty undersink drinking water chiller. Great for use with a Reverse Osmosis System or drinking water filter system.
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$499.99 Special Price $349.99 As low as $310.99

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Replacement water faucets, water pumps, tanks, UV, drain saddles, o-rings, wrenches, valves, water accumulator tanks, fittings, TDS meters, water filters, reverse osmosis membranes, parts for reverse osmosis and pure water drinking systems. Low prices and fast shipping online since 1999. Quantity discounts. Millions sold.

Water Chillers

Chiller Daddy Water Chillers for RO reverse osmosis water purification systems - Chiller Daddy CHL-501 & CHL-750XL Undersink and under cabinet water chillr.

Installation and Trouble ...

Water Filter System and Reverse Osmosis System Installation and Service Guide. Huge inventory of replacement water filters , reverse osmosis membranes and maintenance service parts. Low prices and fast shipping online since 1999. Millions sold.

Faucets for RO Reverse ...

Replacement Air Gap Faucets For Reverse Osmosis RO Systems, Pure Water Systems And Water Coolers - TouchFlo Faucets

Leak Controllers

Leak Controller For Reverse Osmosis Systems, Refrigerators, Ice Makers and Coffee Machines - AquaGate

Tanks

Reverse Osmosis Storage Tanks - Water tanks for reverse osmosis drinking water systems. Low prices and fast shipping online since 1999. Millions sold.

PureGen ERO-435 and RO4-35 Reverse Osmosis System

4 Stage:

STAGE 1 (vertical) - 5 Micron Sediment Pre Filter - Replace Every 3-6 Months

STAGE 2 (vertical) - 10 Micron Carbon Block Pre Filter - Replace Every 12 Months

STAGE 3 (horizontal) - Reverse Osmosis Membrane: Choose a membrane and matching flow restrictor below. Replace when indicated by testing TDS (total dissolved solids)

STAGE 4 (horizontal) - GAC Inline Post Filter (granular activated carbon) - Replace Every 12 Months

See Typical RO Installation Diagram

John Guest Quick Fittings and Connector Instructions

Water Filter Connector Size Selection Guide

Water Filter Installation Guide

Water Filter Change Guide

Mineral Filter Add On Post Filters For Reverse Osmosis Systems

Easy TDS Membrane Performance Calculator

See If It is Time To Replace Your Membrane

SEE OUR ONLINE HELP GUIDE

Featured Product

4 Gallon Reverse Osmosis Water Tank Replacement - GGN-Tank-4-Pro 3.2

SS Stainless Steel Reverse Osmosis Storage Tank - Premium Quality

4 Stage Reverse Osmosis RO Pure Water System - Free Shipping *

Pentek RO-2550 RO 50 GPD 4 Stage Reverse Osmosis RO System

Chrome Air Gap Faucet - Long Reach GGN-FAUCET-AG-P

304 SS Solid Stainless Steel Countertop Water Filter System - Polished Finish

Chiller Daddy CHL-750XL Under Sink Water Chiller - 110 Volt