* WaterWorld ® Proline Plus Compatible Replacement Water Filters & Reverse Osmosis Membranes - RO899-50,350EZ,450EZ,550EZ,DI-4/75

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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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Waterworld USA ®* Proline & Proline Plus Compatible Replacement Water Filters & TFC Reverse Osmosis Membranes - 5 Stage System

RO899-50 Reverse Osmosis System
Proline ®* 350EZ, 450EZ, and 550EZ
DI-4/75 RO Reverse Osmosis System
Millennium RO Reverse Osmosis System



3 vertical filter housings, one top mounted horizontal inline GAC carbon post filter and one top mounted standard size horizontal RO membrane housing.

Waterworld 5 Stage TFC Reverse Osmosis RO Pure Water System Help RO899-50,350EZ,450EZ,550EZ,DI-4/75
Waterworld USA ®* Proline & Proline Plus not exactly as shown, but close

*® WaterWorld Proline RO Reverse Osmosis SC-10-5 Compatible Fit 5 Micron Sediment Prefilter

The first filter housing in the WaterWorld ®* Proline, RO899-50,350EZ,450EZ,550EZ & DI-4/75 reverse osmosis systems contains a sediment pre filter. This filter needs changed at least every 6 months, so order twice as many of these as the carbon filters. 

*® WaterWorld Proline RO Reverse Osmosis SC-10-5 Compatible Fit 5 Micron Sediment Prefilter


Price Each: $5.99

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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.

WaterWorld Proline RO Reverse Osmosis UDF-10 Compatible Fit GAC carbon prefilter

The second filter housing in the WaterWorld ®* Proline, RO899-50,350EZ,450EZ,550EZ & DI-4/75 reverse osmosis systems contains a GAC carbon prefilter. This filter needs changed at least every 12 months.  We recommend upgrading from this GAC filter to a solid carbon block filter as listed below.  Use the carbon block in both the 2nd and 3rd housings.

*® WaterWorld Proline RO Reverse Osmosis UDF-10 Compatible Fit GAC carbon prefilter.


Price Each: $11.99

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Pentek CC-10 # 155155 GAC Carbon Water Filter CC10 Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner and Many Other Brands

Pentek CC-10 # 155155 GAC Carbon Water Filter CC10 Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner and Many Other Brands. Granular Activated Carbon Water Filter. 9 3/4" long X 2 7/8" diameter. 12 per case, sold individually. Ametek # 155155 CC Series granular activated carbon cartridges are an excellent choice to reduce unwanted taste, odor, chlorine and certain VOC's from potable drinking water. They contain coconut shell based activated carbon, which produces drinking water of exceptional taste and quality and provides better VOC reduction than standard GAC cartridges. Order a case and save even more.

*® WaterWorld Proline RO Reverse Osmosis UDF-10 Compatible Fit GAC carbon prefilter.

The second and third filters in the WaterWorld ®* Proline reverse osmosis system are the carbon block pre filters.  These filters need changed at least every 12 months.


Price Each: $9.99

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KX Matrikx ® 10/2 Carbon Block Water Filter # 10-250-190-975 / GGN-10-2-BLOCK

The KX 10/2 has been discontinued. If you order the KX 10/2 you will receive the GGN-10-2-BLOCK Premium Carbon Block 10 Micron High Grade Carbon Filter. 9 7/8" long X 2 1/2" diameter OD X 1 1/4" diameter ID. 25 per case, sold individually. Order a case and save even more.

The ®* WaterWorld Proline post filter is a horizontally mounted GAC carbon post filter.  IL-10W-C Compatible Inline Carbon Polishing Post Filter


The ®* WaterWorld Proline post filter is a horizontally mounted GAC carbon post filter.  IL-10W-C Compatible Inline Carbon Polishing Post Filter


Price Each: $14.99

Quick Connector Size


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Omnipure ® K2533 Inline Carbon Water Filter

Omnipure ® K2533 - 2" X 10" GAC Inline Carbon Water Filter With Quick Connect Fittings. 25 per case, sold individually. Note: The connectors come with a "plug" in them for sanitary reasons. This keeps dirt and debris from entering the connector prior to use. To remove the plugs you push in on them and hold down the outer plastic ring, and then pull the plug out. The same method is used to remove the tubing when it comes time to replace the filter. 25 per case, sold individually. Order a case and save even more.

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Five Stage Standard RO Water Filter Change Kit fot the WaterWorld Proline reverse osmosis system.


Save and buy a one year filter change kit for the WaterWorld ®* Proline that includes an additional sediment prefilter for a 6 month sediment filter change for best results.  It also includes the upgrade from GAC to carbon block for the first carbon filter.


Price Each: $43.99

Inline GAC Connector Size

Optional Jaco Connectors For Threaded Post Filter

Number of Filter Sets

Omnifilter Brand

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Five Stage Standard RO Water Filter Change Kit

Five Stage Standard RO Water Filter Change Kit - One Year Filter Change Kit: (2) 5 Micron Poly Spun Sediment Pre Filters (9 7/8") (2) 10 Micron Extruded Carbon Pre Filter (9 3/4") (1) In-Line GAC Post Filter (Granular Activated Carbon 10") FREE CARBON BLOCK UPGRADE - Our 5 stage filter replacement kit has a second carbon block pre filter to replace the GAC hard shell pre filter that comes standard in most RO systems. The sediment prefilter needs changed twice as often as the carbon filters, so our kit includes an extra one. Membranes are sold separately. LIMITED TIME OFFER - Omnifilter prefilters and post filter for additional savings. The Omnifilter post filter is only available for post filters using 1/4" quick connections.

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*® WaterWorld Proline RO Reverse Osmosis Compatible Fit DI Deionization Filter


*® WaterWorld Proline RO Reverse Osmosis Compatible Fit DI Deionization Filter


Price Each: $29.99


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Pentek PCF1-10MB # 155273 PCF110MB Deionization Water Filter Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands

Pentek PCF1-10MB # 155273 PCF110MB Deionization Water Filter Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands Deionization Water Filter. FDA D.I. Resin. 9 3/4" long X 2 7/8" diameter. 6 per case, sold individually. Ametek # 155273 PCF Series cartridges have been developed in response to the requirements for deionized water in many industries. They are manufactured using an FDA-compliant resin that has been subjected to additional post-production steps to minimize the total organic carbon (TOC) level. This high capacity, semi-conductor-grade resin cartridges are ideal for use in pharmaceutical and medical laboratories, cosmetics and circuit board printing applications. Order a case and save even more.


Compatible Fit Replacement Reverse Osmosis RO Membranes For WaterWorld ®* Proline Reverse Osmosis Systems

The Membrane Housing is the large horizontal housing on top.  Look at the label on the housing or the label on the membrane inside the housing to see the GPD (gallons per day) output.  It is important to order the same GPD size.  Or you can upgrade the GPD of the reverse osmosis membrane.

Dow Filmtec Replacement TFC Reverse Osmosis RO Membranes


WaterWorld ®* Proline Plus 5 stage reverse osmosis system compatible replacement membrane - 50 GPD

Dow Filmtec ® TW30-1812-50 RO reverse osmosis membrane # 80722


Price Each: $69.99

Replacement Membrane Housing

Replacement Flow Restrictor

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Dow Filmtec ® TW30-1812-50 TFC 50 GPD RO reverse osmosis membrane - standard size 1.75" X 11.75" Part # 80722

See Replacement Membrane Housings
Use a TDS tester to see if your membrane is working correctly
See Standard Size Dimensions

Learn How To Upgrade Your Reverse Osmosis Membrane Capacity

Dow Filmtec Replacement TFC Reverse Osmosis RO Membranes


WaterWorld ®* Proline + BP
5 stage reverse osmosis system with optional  Booster Pump  compatible replacement membrane.
(you may need to open your membrane housing and inspect the membrane to get the model number from the membrane label)

Dow Filmtec ® TW30-1812-75 (BW60-1812-75) RO reverse osmosis membrane # 114731


Price Each: $74.99

Replacement Membrane Housing

Replacement Flow Restrictor

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Dow Filmtec ® TW30-1812-75 (BW60-1812-75) TFC 75 GPD RO reverse osmosis membrane - standard size 1.75" X 11.75" Part # 114731

See Replacement Membrane Housings
Use a TDS tester to see if your membrane is working correctly
See Standard Size Dimensions

Learn How To Upgrade Your Reverse Osmosis Membrane Capacity

Standard size RO reverse osmosis membrane housing


Standard size RO reverse osmosis membrane housing


Price Each: $19.99

Optional Flow Restrictor

Connectors

Optional Wrench

304 Solid Stainless Steel

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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).

Inline reverse osmosis membrane flow restrictor


Learn How to upgrade the GPD rate to increase production speed with a membrane upgrade


Price Each: $19.99

ML Per Minute

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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.

See more info on reverse osmosis flow restrictors

Amtrol ® RO Mate 4 RO Replacement Tank


Amtrol ® RO 4 Reverse Osmosis Replacement Accumulator Water Tank


Price Each: $79.99
Sale Price: $49.99
Savings: $30.00

Optional Tank Ball Valve

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Amtrol ® RO 4 RO Replacement Tank for Reverse Osmosis Systems. 4.4 Gallon (15" high X 11" diameter - including base) SS Stainless Steel Connection Stem - Connection Size: 1/4" MNPT - Valve Optional. Ball Shut Off Valve Optional.

We recommend that you replace the valve when replacing the tank.

Air pressure gauge for reverse osmosis water accumulator tanks


Air pressure gauge for reverse osmosis water accumulator tanks


Price Each: $17.99

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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.


Parts Department Featured Items For Water Filtration And Reverse Osmosis RO Systems
 
TDS Meter - Tester To Test For Total Disolved Solids In Water


How Pure Is Your Water?    Find Out!

Price Each: $37.99

Calibration Solution

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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 - 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

TDS Meter - Easily Installs Inline
 

Price Each: $49.99
Sale Price: $39.99
Savings: $10.00

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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. Simply cut the line out from the RO membrane housing and install the inline probe between the membrane housing and the shutoff valve, when possible. The closer to the membrane housing the better. Insert the ends of the tube into the John Guest quick connectors on the TDS meter probe. Then cut the inlet feed water line to the system and install the other T/probe. 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. Dual Range 0-9990 ppm (From 0 - 999 ppm the resolution is 1 ppm. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking 'x10' image.) Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Comes equipped with John Guest Quick-Connect T-fittings as shown. Installs quickly and easily. SPECIFICATIONS Range: 0-9990 ppm Accuracy: ±2% Cable Length: 24.5" (including sensor) Power source: 2 x 1.5V button cell batteries (included) Battery life: over 1000 hours of continuous use Size: 7.6 x 2 x 4.7 cm (3 x .8 x 1.9 in.) Weight: 79.4 g (2.8 oz.) Always know if your RO membrane is performing correctly!

Learn more about using TDS meters and total dissolved solids

Professional Grade Electronic Air Pressure Gauge GGN-APG-202
 

Price Each: $43.99
Sale Price: $27.99
Savings: $16.00


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Professional Grade Electronic Air Pressure Gauge GGN-APG-202

Professional Grade Electronic Air Pressure Gauge GGN-APG-202. From the moment you pick up this air pressure gauge you will know it is top quality. Machined Aluminum Alloy case and rubberized non-slip grip handle tips with ergonomic design. Easy to read LCD screen with soft blue backlighting. It even includes a built in LED valve stem light so you can clearly see the valve stem to perform readings. And the anti skid slot makes valve stem connection simple. Perfect in every detail. 5-99 PSI Displays your choice of 4 measuring units. PSI, bar, kPa, kg/cm3. +/- 1% high Accuracy. Long life Lithium Ion Batteries. If you enjoy high quality instruments, then this pressure gauge is for you. Use for your tires or for high accuracy readings for RO Reverse Osmosis drinking water system accumulator tanks. If accuracy is important, this is the meter you have been looking for. GoesGreenNetwork UPC#850901003149

Dow Corning ® 111 5 gram O-ring Silicone Lubricant and Sealant


Prevent Leaks!


Price Each: $3.99

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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

Leak Controller for Reverse Osmosis Systems, Refrigerators, Ice Makers and Coffee Machines
 


Price Each: $79.99
Sale Price: $49.99
Savings: $30.00

Extra Sensor with 25 foot wire

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Leak Controller for Reverse Osmosis Systems, Water Coolers, Refrigerators, Ice Makers and Coffee Machines.

Save a flood inside the house. Prevent costly water damage. Automatically shut off the water to leaking Reverse Osmosis Systems, Water Coolers, Refrigerators, Ice Makers and Coffee Machines. Alarm flashes and beeps to notify you to the system shut down. Very simple to install and use. Brilliant design. Simply place the sensor (Similar in size to a small computer mouse) where water will collect below the system. Cut the incoming 1/4" water tube and insert each end into the easy to use John Guest quick connectors on the controller. When the sensor gets wet it shuts off the incoming water at the controller. Reset the sensor by wiping it dry. It even comes with a built in filter change reminder. Set it to beep and flash after 6, 12 or 18 months, when it is time for a filter change or scheduled maintenance. # LCS14 with 4 1/2' cord that connects the sensor. The Leak Controller is a great way to control costly leaks.

Leak Controller Operation Guide
 
Leak Controller Flyer

Pro Products Sani - System Sanitizer
 

Price Each: $7.99
Sale Price: $4.99
Savings: $3.00

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Pro Products Sani System Sanitizer

Pro Products Sani System Sanitizer. 0.25 or 0.5 fl. oz. concentrate. 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. 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. Sani-System is now NSF certified! Directions for Use It is a violation of Federal Law to use this product in a manner inconsistent with its labeling. Sanitization of Interior Surfaces of Water Softeners and Reverse Osmosis (RO) Units. Water Softeners Sanitization should occur after initial installation, after the system is serviced and periodically during its use. Backwash the softener and add 1 ounce of sanitizer per 8 gallons of water (200 ppm active quaternary) to the brine tank well. (NOTE: standard systems capacity is 48 gallons,) (The brine tank should have water in it to permit the solution to be carried into the softener.) Proceed with the normal regeneration or interrupt the cycle after the brining step and let the softener soak for a minimum of 60 seconds. Backwash the softener with potable water to make sure all sanitizing solution is thoroughly rinsed from the unit before returning it to service. Reverse Osmosis (RO) Units Sanitization should occur after initial installation, after the system is serviced and periodically during its use. Turn off RO system, drain storage tank and remove membrane element and pre-filters. Put membrane element in a plastic bag so it remains wet. Fill empty pre-filter housing with 1 ounce of sanitizer per 8 gallons of water (200 ppm active sanitizer) and turn on raw water. (NOTE: standard system capacity is 2-3 gallons) After holding tank is full, let system stand idle for a minimum of 60 seconds. Turn off water. Drain holding tank. Before the system is put back into service, flush system with potable water to assure sanitizing solution is rinsed thoroughly form system. Follow the manufacturer’s directions for re-installation of new per-filters, membrane elements and post filter, membrane element and post filter. Sanitation of interior surfaces of Ice Machines, Water Coolers, Water holding tanks and Pressure tanks, Ice Machines Sanitization should occur after initial installation, after the machine is serviced and periodically during its use. Shut off incoming water line to machine. Prepare a solution of 1 oz. of sanitizer per 8 gallons of water (200 ppm active quaternary) Circulate solution through machine making user to wet all surfaces and allow a minimum contact of 60 seconds. Drain and completely flush system twice with portable water. Storage and disposal DO NOT CONTAMINATE WATER, FOOD OR FEED BY STORAGE OR DISPOSAL - Store in a dry place no lower in temperature then 50 degrees F or higher than 120 degrees F. Shipping information Non-hazardous. This is the best sanitizing solution available anywhere! Stock up and save.


Be sure to check our Parts Department for important parts such as TDS Testers For Reverse Osmosis Membranes, Replacement Tanks, O-rings , Filter Housing Wrenches, Faucets, Pumps, Fittings, UV Systems and more parts for your reverse osmosis pure water filtration system.   View maintenance and servicing tips online at our Installation & Trouble shooting Guide.

*® Waterworld, Proline and Proline Plus are the registered trademarks of Waterworld USA Inc., Texas, USA, the manufacturer of Waterworld ® Proline & Proline Plus ® brand reverse osmosis systems and water treatment equipment.  The replacement water filters and reverse osmosis membranes listed above are not manufactured or endorsed by Waterworld USA ®.  WaterFiltersOnline.com LLC does not sell products endorsed by WaterWorld USA ®.  Rather, these filters and membranes are manufactured by other companies.  While these filters and membranes are compatible fit for use in Waterworld Proline ® brand water filter treatment equipment, we make no representation as to whether using these filters and RO membranes is consistent with the warranty and specifications applicable to Waterworld Proline & Proline Plus ® reverse osmosis equipment.


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Replacement water filters and reverse osmosis membranes