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Parts & Accessories

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.

Filters

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    Filter Housing Wrench For AMI Commercial & Whole House Filter Housings (For Big Blue Filters)

    H-C9205
    In Stock for Immediate Shipment

    Filter Wrench for 4.5x20 BB Water Filter Housing Filter Change Tool Compatible with AMI Commercial and Whole-House Filter Housings AMI Filter Ho...

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    $5.00 - $5.00
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  • $58.50 - $58.50
    $58.50
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    $58.50

    Acid RO Membrane Cleaning Cartridge | 20" Standard Size | Low pH Membrane Cleaner to Remove Scale

    C-C2520-A11
    In Stock for Immediate Shipment

    RO Membrane Cleaning Chemical Cartridges for Installation in 20" Standard Prefilter HousingAM-11 Acid Cleaner for Scale Removal Model Number: ...

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    $58.50 - $58.50
    $58.50
    $58.50 - $58.50
    $58.50
  • $75.00 - $75.00
    $75.00
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    $75.00

    Alkaline RO Membrane Cleaning Cartridge | 20" Standard Size | High pH Membrane Cleaner for Organics

    C-C2520-A22
    In Stock for Immediate Shipment

    RO Membrane Cleaning Chemical Cartridges for Installation in 20" Standard Prefilter HousingAM-22 Alkaline Membrane Cleaner for Organics Fouling &a...

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    $75.00 - $75.00
    $75.00
    $75.00 - $75.00
    $75.00
  • $108.64 - $108.64
    $108.64
    $108.64 - $108.64
    $108.64

    Acid RO Membrane Cleaning Cartridge | 20" Big Blue Size | Low pH Membrane Cleaner to Remove Scale

    C-C4220-A11
    In Stock for Immediate Shipment

    RO Membrane Cleaning Chemical Cartridges for Installation in 20" Big Blue Prefilter HousingAM-11 Acid Membrane Cleaner for Scale Removal Model...

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    $108.64 - $108.64
    $108.64
    $108.64 - $108.64
    $108.64
  • $48.99 - $48.99
    $48.99
    $48.99 - $48.99
    $48.99

    Commercial Filter Housing for 4.5 x 20" Water Filter | 1" In/Out | Fits #20 Big Blue Filters

    H-H201BGE-GRAY
    In Stock for Immediate Shipment

    Water Filter Housing for 4.5" x 20" Filter Cartridge | 1" FNPT In/Out PortsCommercial Prefilter Housing or Whole House Water Filter Housing | Fit...

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    $48.99 - $48.99
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    $48.99 - $48.99
    $48.99
  • $167.02 - $167.02
    $167.02
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    $167.02

    Alkaline RO Membrane Cleaning Cartridge | 20" Big Blue Size | High pH Membrane Cleaner for Organics

    C-C4220-A22
    In Stock for Immediate Shipment

    RO Membrane Cleaning Chemical Cartridges for Installation in 20" Big Blue Prefilter HousingAM-22 Alkaline Membrane Cleaner for Organics Fouling &am...

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    $167.02 - $167.02
    $167.02
    $167.02 - $167.02
    $167.02
  • $12.00 - $12.00
    $12.00
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    $12.00

    O-Ring for AMI 10" and 20" Big Blue Housing w/ Ribbed Cap

    OR-HBBX
    In Stock for Immediate Shipment

    Replacement O-Rings for 10" & 20" Big Blue Filter Housings Model Number: OR-HBBX For Housing Type: 10" & 20" Big Blue Housing with Ribb...

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    $12.00 - $12.00
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  • $9.12 - $9.12
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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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    $9.12 - $9.12
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  • $62.73 - $62.73
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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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    $62.73 - $62.73
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  • $19.85 - $19.85
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    Filter Housing for 20-Inch Water Filter | 3/4" In/Out | No Pressure Relief | 20" Standard

    H-H234WBE
    In Stock for Immediate Shipment

    Filter Housings for Water Treatment Filter CartridgesFor 20 Inch Standard Filters | Blue Body | Black Cap | 3/4" In & Out Connections | No Pr...

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    $19.85 - $19.85
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  • $5.70 - $5.70
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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

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  • $72.62 - $72.62
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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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  • $25.00 - $25.00
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    #20 Slim Line Filter Housing | 1/2" FNPT | No Pressure Relief | Fits 20" Standard Water Filter | Pentair Pentek

    158205
    Ships in 5 Days

    #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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  • $7.00 - $7.00
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    Replacement U-Shaped O-Ring for 4.5x20 Big Grey Water Filter Housing Part # H-H201BGE-GRAY

    OR-HGRAY
    In Stock for Immediate Shipment

    Replacement U-Shaped O-Ring for 4.5x20 Big Grey Water Filter Housing Part # H-H201BGE-GRAYReplacement Filter Housing O-Ring Compatible with Grey ...

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    $7.00 - $7.00
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  • $67.86 - $67.86
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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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    $67.86 - $67.86
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  • $6.95 - $6.95
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    O-Ring for 20" Standard Housings w/ Ribbed Cap

    OR-H20X
    In Stock for Immediate Shipment

    Replacement O-Ring for 20" Standard Ribbed-Cap Filter housings (1/2" and 3/4" inlet and outlet ports only) Model Number: OR-H20X For Housing ...

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    $6.95 - $6.95
    $6.95
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  • $181.90 - $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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    $181.90 - $181.90
    $181.90
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    $181.90
  • $59.60 - $59.60
    $59.60
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    RO Membrane & System Preservative Cartridge | 20" Standard Size

    C-C2520-A88
    In Stock for Immediate Shipment

    RO Membrane and System Preservative Cartridge for 20-Inch Standard Housing Preserve Watermakers, RO Systems & Membranes During Periods of Non-...

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    $59.60 - $59.60
    $59.60
    $59.60 - $59.60
    $59.60
  • $76.63 - $76.63
    $76.63
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    $76.63

    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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    $76.63 - $76.63
    $76.63
    $76.63 - $76.63
    $76.63
  • $73.87 - $73.87
    $73.87
    $73.87 - $73.87
    $73.87

    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 ...

    View full details
    $73.87 - $73.87
    $73.87
    $73.87 - $73.87
    $73.87
  • $25.00 - $25.00
    $25.00
    $25.00 - $25.00
    $25.00

    #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...

    View full details
    $25.00 - $25.00
    $25.00
    $25.00 - $25.00
    $25.00
  • $232.70 - $232.70
    $232.70
    $232.70 - $232.70
    $232.70

    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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    $232.70 - $232.70
    $232.70
    $232.70 - $232.70
    $232.70
  • $93.71 - $93.71
    $93.71
    $93.71 - $93.71
    $93.71

    RO Membrane & System Preservative Cartridge | 20" Big Blue Size

    C-C4220-A88
    In Stock for Immediate Shipment

    RO Membrane and System Preservative Cartridge for 20-Inch Big Blue Housing Preserve Watermakers, RO Systems & Membranes During Periods of Non-...

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    $93.71 - $93.71
    $93.71
    $93.71 - $93.71
    $93.71
  • $66.80 - $66.80
    $66.80
    $66.80 - $66.80
    $66.80

    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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    $66.80 - $66.80
    $66.80
    $66.80 - $66.80
    $66.80
  • $1,237.60 - $1,237.60
    $1,237.60
    $1,237.60 - $1,237.60
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    AMI Stainless Steel Filter Housing | 70 GPM | 5x 20" Cartridges | 304 SS

    C-0520-2F-304PC
    In Stock for Immediate Shipment

    Multi-Cartridge Water Filter Housing | 5 Cartridges 20" Length | 304 Stainless Steel AMI C-0520-2F-304PC commercial filter vessel houses 5 filter...

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    $1,237.60 - $1,237.60
    $1,237.60
    $1,237.60 - $1,237.60
    $1,237.60

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.

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