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RO Water Treatment Replacement Parts & Accessories Supplier


If you want the purest and safest water around, you cannot afford to neglect the importance of reverse osmosis. Reverse osmosis (RO) systems remove up to 99% of dissolved solids, salts, microorganisms, and many high molecular weight organics by allowing purified water to pass through while the toxic chemicals are filtered out. A whole house RO system is vital for making sure you have access to only the cleanest drinking water. You will not be able to find better expertise or more up to the minute technology except at wateranywhere.

  • Original price $5.00 - Original price $5.00
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    Pentek Filter Housing Wrench for All Slimline Housings

    150539
    In Stock for Immediate Shipment

    Filter Housing Wrench   Model Number: 150539 For Housing: Pentek Brand Slimline Filter Housings (all)  

    Original price $5.00 - Original price $5.00
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    Pentek 151122 O-Ring for 10" and 20" Big Blue Filter Housings

    151122
    In Stock for Immediate Shipment

    Pentek 151122 O-Ring for 10" and 20" Big Blue Filter Housings Replacement O-ring for Pentek 10" and 20" Big Blue and Heavy Duty Housings pri...

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    Original price $9.12 - Original price $9.12
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  • Original price $21.82 - Original price $21.82
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    #10 Slim Line Water Filter Housing | 1/2" FNPT In/Out Connections | Blue with Black Cap | For 10" Standard Water Filter Cartridge | Pentair Pentek

    158196
    In Stock for Immediate Shipment

    #10 SlimLine Filter Housing for 10" Standard Water Filter Cartridge For 10 Inch Standard Filters | Blue Body | Black Cap | Traditional Cap Design...

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    Original price $21.82 - Original price $21.82
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    Pentek 151121 O-Ring for 5", 10" & 20" Slim Line Filter Housings

    151121
    In Stock for Immediate Shipment

    Pentek 151121 O-Ring for Slim Line, Standard Flat Cap and Counter Top Filter Housings Replacement O-ring for Ametek/Pentek 5", 10", and 20" fi...

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    Pentek O-Ring for 10" and 20" Standard & VIH Filter Housings

    151120
    In Stock for Immediate Shipment

    Pentek 151120 O-Ring for 10" and 20" Standard Filter Housings Replacement O-ring for Ametek/Pentek 10" and 20" Standard Filter Housings with 3...

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    10" SlimLine Housing, Clear/Blue, 1/2" in/out

    158215
    In Stock for Immediate Shipment

    Ametek/Pentek Filter HousingsFilter Housings for Ametek/Pentek, Omnipure, Cuno, KX filters, Harmsco, Carbon Filters, Sediment Filters, DI Cartridge...

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    Original price $34.35 - Original price $34.35
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    10" Wide (std) Housing, Blue/Black, 3/4" in/out

    150068
    In Stock for Immediate Shipment

    Ametek/Pentek Filter Housings Filter Housings for Ametek/Pentek, Omnipure, Cuno, KX filters, Harmsco, Carbon Filters, Sediment Filters, DI Cartridg...

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    Original price $36.80 - Original price $36.80
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    10" SlimLine Housing, White/White, 1/4" in/out

    158125
    In Stock for Immediate Shipment

    Ametek/Pentek Filter Housings Filter Housings for Ametek/Pentek, Omnipure, Cuno, KX filters, Harmsco, Carbon Filters, Sediment Filters, DI Cartridg...

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    #20 Standard Filter Housing | 3/4" FNPT | With Pressure Relief | Fits 20" Standard Water Filter | Pentair Pentek

    150069
    In Stock for Immediate Shipment

    #20 Standard Filter Housing for 20" Standard Water Filter Cartridge Blue Body | Black Cap | Traditional Cap Design | 3/4" In & Out Connections...

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    Original price $62.73 - Original price $62.73
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  • Original price $23.87 - Original price $23.87
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    10" SlimLine Housing, Clear/Blue, 3/8" in/out

    158008
    In Stock for Immediate Shipment

    Ametek/Pentek Filter Housings Filter Housings for Ametek/Pentek, Omnipure, Cuno, KX filters, Harmsco, Carbon Filters, Sediment Filters, DI Cartridg...

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    Original price $23.87 - Original price $23.87
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    Pentek 144368 SW-4 Filter Housing Wrench for 20" Big Blue

    144368
    In Stock for Immediate Shipment

    Filter Housing Wrench Model Number: 144368 For Housing: Pentek SW-4 Brand Polypropylene Filter Wrench for 20" Big Blue Housings

    Original price $5.70 - Original price $5.70
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  • Original price $49.00 - Original price $49.00
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    #20 Slim Line Filter Housing | 1/2" FNPT | No Pressure Relief | Fits 20" Standard Water Filter | Pentair Pentek

    158205
    In Stock for Immediate Shipment

    #20 SlimLine Filter Housing for 20" Standard Water Filter Cartridge Blue Body | Black Cap | Traditional Cap Design | 1/2" In & Out Connections...

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    Original price $49.00 - Original price $49.00
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    20" Big Blue Housing, Blue/Black 1" w/ Pressure Relief

    150233
    In Stock for Immediate Shipment

    Ametek/Pentek Filter Housings Filter Housings for Ametek/Pentek filters, Omnipure, Cuno, KX filters, Harmsco, Carbon Filters, Sediment Filters, DI ...

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    Original price $72.62 - Original price $72.62
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  • Original price $51.27 - Original price $51.27
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    10" Big Blue Housing, Blue/Black 3/4" w/ Pressure Relief

    150469
    In Stock for Immediate Shipment

    Ametek/Pentek Filter HousingsFilter Housings for Ametek/Pentek filters, Omnipure, Cuno, KX filters, Harmsco, Carbon Filters, Sediment Filters, DI C...

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    Original price $51.27 - Original price $51.27
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  • Original price $74.00 - Original price $74.00
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    20" Big Blue Housing, Blue/Black 3/4" w/ Pressure Relief

    150467
    In Stock for Immediate Shipment

    Ametek/Pentek Filter HousingsFilter Housings for Ametek/Pentek filters, Omnipure, Cuno, KX filters, Harmsco, Carbon Filters, Sediment Filters, DI C...

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    Original price $74.00 - Original price $74.00
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  • Original price $181.90 - Original price $181.90
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    Pentek PBH-420-1 | Bag Filter Housing for 20" Filter Bags | 1" NPT Connections

    150367
    In Stock for Immediate Shipment

    Pentek PBH Series Bag Filter Housings (Bag Vessels)PBH-420-1 150367 Filter Housing for 20" Bag Filters with 1" NPT Pipe Size Outstanding Chemical...

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    Original price $181.90 - Original price $181.90
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  • Original price $14.82 - Original price $14.82
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    10" SlimLine Housing, Blue/Black, 1/4" in/out

    158114
    In Stock for Immediate Shipment

    Ametek/Pentek Filter Housings Filter Housings for Ametek/Pentek, Omnipure, Cuno, KX filters, Harmsco, Carbon Filters, Sediment Filters, DI Cartridg...

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    Original price $14.82 - Original price $14.82
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  • Original price $5.90 - Original price $5.90
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    Pentek 150296 SW-3 Filter Wrench for #10 Big Blue Housings

    150296
    In Stock for Immediate Shipment

    Filter Housing Wrench Model Number: 150296 For Housing: Pentek 150296 SW-3 Filter Wrench for #10 Big Blue Housings

    Original price $5.90 - Original price $5.90
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  • Original price $73.87 - Original price $73.87
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    20" Big Blue Housing, Blue/Black 1" in/out

    150234
    In Stock for Immediate Shipment

    Ametek/Pentek Filter Housings Filter Housings for Ametek/Pentek filters, Omnipure, Cuno, KX filters, Harmsco, Carbon Filters, Sediment Filters, DI ...

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    Original price $73.87 - Original price $73.87
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  • Original price $76.63 - Original price $76.63
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    20" Big Blue Housing, Blue/Black 1.5" w/ Pressure Relief

    150235
    In Stock for Immediate Shipment

    Ametek/Pentek Filter Housings Filter Housings for Ametek/Pentek filters, Omnipure, Cuno, KX filters, Harmsco, Carbon Filters, Sediment Filters, DI ...

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    Original price $76.63 - Original price $76.63
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    Current price $76.63
  • Original price $51.27 - Original price $51.27
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    Current price $51.27

    10" Big Blue Housing, Blue/Black 1" w/ Pressure Relief

    150237
    In Stock for Immediate Shipment

    Ametek/Pentek Filter Housings Filter Housings for Ametek/Pentek filters, Omnipure, Cuno, KX filters, Harmsco, Carbon Filters, Sediment Filters, DI ...

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    Original price $51.27 - Original price $51.27
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    Current price $51.27
  • Original price $35.00 - Original price $35.00
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    #20 Slim Line Filter Housing | 1/2" FNPT | With Pressure Relief | Fits 20" Standard Water Filter | Pentair Pentek

    158204
    In Stock for Immediate Shipment

    #20 SlimLine Filter Housing for 20" Standard Water Filter Cartridge Blue Body | Black Cap | Traditional Cap Design | 1/2" In & Out Connections...

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    Original price $35.00 - Original price $35.00
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  • Original price $220.75 - Original price $220.75
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    Current price $220.75

    Pentek PBH-410-1 | Bag Filter Housing for 10" Filter Bags | 1" NPT Connections

    150360
    Ships in 5 Days

    Pentek PBH Series Bag Filter Housings (Bag Vessels)PBH-410-1 150360 Filter Housing for 10" Bag Filters with 1" NPT Pipe Size Outstanding Chemical...

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    Original price $220.75 - Original price $220.75
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  • Original price $232.70 - Original price $232.70
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    Pentek PBH-420-1.5 | Bag Filter Housing for 20" Filter Bags | 1.5" NPT Connections

    150337
    In Stock for Immediate Shipment

    Pentek PBH Series Bag Filter Housings (Bag Vessels)PBH-420-1.5 150337 Filter Housing for 20" Bag Filters with 1.5" NPT Pipe Size Outstanding Chem...

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    Original price $232.70 - Original price $232.70
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    Current price $232.70
  • Original price $82.66 - Original price $82.66
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    20" Big Blue Housing, Blue/Black 1.5" in/out

    150236
    In Stock for Immediate Shipment

    Ametek/Pentek Filter Housings Filter Housings for Ametek/Pentek filters, Omnipure, Cuno, KX filters, Harmsco, Carbon Filters, Sediment Filters, DI ...

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    Original price $82.66 - Original price $82.66
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    Current price $82.66
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    10" Big Blue Housing, Blue/Black 1" in/out

    150238
    In Stock for Immediate Shipment

    Ametek/Pentek Filter Housings Filter Housings for Ametek/Pentek filters, Omnipure, Cuno, KX filters, Harmsco, Carbon Filters, Sediment Filters, DI ...

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    Original price $50.72 - Original price $50.72
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    Current price $50.72
  • Original price $158.50 - Original price $158.50
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    Current price $158.50

    Pentek PBH-410-1.5 | Bag Filter Housing for 10" Filter Bags | 1.5" NPT Connections

    150338
    Ships in 5 Days

    Pentek PBH Series Bag Filter Housings (Bag Vessels)PBH-410-1.5 150338 Filter Housing for 10" Bag Filters with 1½" NPT Pipe Size Outstanding Chemi...

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    Original price $158.50 - Original price $158.50
    Original price
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    Current price $158.50

Applied Membranes, Inc. Membrane Chemicals


We carry the essential chemicals recommended to prolong the life of RO membranes.

  • Membrane Cleaners - Acid membrane cleaners remove mineral scale fouling while Alkaline membrane cleaners remove biological fouling to restore membrane performance, reducing strain on other system components.
  • Membrane Cleaning Cartridges - Applied Membranes pre-loaded membrane cleaning cartridges load directly into the system’s pre-filter housing for fast and easy RO membrane cleaning.
  • RO Membrane Preservatives - Specially formulated chemicals to prevent biological growth during periods of non operation.
  • Membrane Preservative Cartridges - Applied Membranes RO membrane preservative cartridges are pre-loaded with membrane preservative. To pickle an RO system or watermaker during an off-season, simply install the cartridge into the prefilter housing and flush the chemical into the system.
  • Antiscalant Pretreatment - A highly effective additive used as a pretreatment to prevent membrane scaling.

RO Replacement Pumps, Control Valves, Membranes & More


  • Water Treatment Pumps - We offer a selection of water pressurization pumps and motors for residential, commercial, and industrial water treatment including RO system pressure pumps, delivery pumps, and permeate pumps.
  • Flow Restrictors for RO Systems - Flow restrictors are designed to restrict the flow on the drain line (where the wastewater is expelled during reverse osmosis) in home RO systems to keep the membrane pressurized and control the recovery ratio of the system. We stock a variety of flow restrictors sized for all home RO membrane flow rates for convenient replacement. Flow restrictors are recommended to be replaced at the time of RO membrane replacement to ensure optimal system performance.
  • Flow Control Valves - There are a variety of use cases for flow control valves in reverse osmosis filtration. Most commonly, they are used to accurately and safely control the flow of the water as it undergoes the various steps in the reverse osmosis filtration process. We carry brass and stainless steel needle valves that are best suited for high-pressure systems.

Shop Water Filtration Parts & Accessories for RO Systems


Whatever specific purification needs you may have, wateranywhere offers all the necessary parts, tools, and accessories to ensure the optimal functionality of your system. Our decades of experience in hydration and filtration make us your premier choice for all RO filtration components. Whether a first time installation or routine maintenance, our selection of high-quality products from the most trusted and reliable manufacturers and suppliers in the industry are guaranteed to help get the job done.

Consult our FAQ page for DIY tips and tricks to improve performance, or shop our best sellers list to browse our selection of water filtration parts and tools

Contact us to learn more about our water filtration accessory parts.