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Membrane Housings

Supplier of Membrane Housings for Reverse Osmosis Systems


We are a supplier of stainless steel, PVC, and fiberglass (FRP) RO membrane housings, mounts, adapters, and spare parts to manufacturers, DIY homeowners, and business proprietors. This vital equipment ensures the optimal performance of the RO membrane. We carry a variety of RO pressure vessels in all the standard sizes; with 2.5” and 4” diameters and lengths from 14, 21, 40, 80, or 120 inches. These standard manufacturing dimensions ensure membrane housing components are easy to replace and are interchangeable to fit most systems. We offer pressure vessels in a variety of materials with different pressure ratings to accommodate various applications, ensuring your RO system runs optimally and safely for optimal functionality.

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  • $135.00 - $135.00
    $135.00
    $135.00 - $135.00
    $135.00

    2.5"Dia.x21"L 316 Stainless Steel Membrane Housings

    PV2521SSAU-316
    In Stock for Immediate Shipment

    2.5 x 21 Stainless Steel Membrane Housing Pressure Vessel for RO, NF, UF, MF Membranes AMI 316 SS pressure vessels for housing 2.5" x 21" membran...

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    $135.00 - $135.00
    $135.00
    $135.00 - $135.00
    $135.00
  • $330.74 - $330.74
    $330.74
    $330.74 - $330.74
    $330.74

    2.5" x 14" Fiberglass/FRP Seawater Membrane Housing Pressure Vessel for Watermaker

    PV2514A1000E
    In Stock for Immediate Shipment

    2.5 x 14 Fiberglass Pressure Vessel Membrane Housing for Seawater RO Membranes AMI fiberglass SWRO 1000 psi membrane housings are specially d...

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    $330.74 - $330.74
    $330.74
    $330.74 - $330.74
    $330.74
  • $21.25 - $21.25
    $21.25
    $21.25 - $21.25
    $21.25

    End Clamps for 4" for SS End Clamp Style Membrane Housing

    PV-CL40W
    In Stock for Immediate Shipment

    End Clamps for 4" SS Membrane Housing Replacement end clamps for securing the end plugs (or end caps) to the vessel body for AMI 4" Diameter St...

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    $21.25 - $21.25
    $21.25
    $21.25 - $21.25
    $21.25
  • $37.50 - $37.50
    $37.50
    $37.50 - $37.50
    $37.50

    Interconnectors for 4" & 2.5" Male style Membranes

    PV-IN410
    In Stock for Immediate Shipment

    Interconnector for in between two 4" or 2.5" membranes. Works with membrane types: AMI (Applied Membranes) FILMTEC Fluid Systems Toray Inclu...

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    $37.50 - $37.50
    $37.50
    $37.50 - $37.50
    $37.50
  • $3.31 - $3.31
    $3.31
    $3.31 - $3.31
    $3.31

    External O-Ring for 2.5" for SS End Clamp Style Membrane Housing

    PV-OR25-329
    In Stock for Immediate Shipment

    O-Ring for Membrane Housing End Caps Replacement O-Ring Seal for 2.5" diameter membrane housing pressure vessel end caps, end clamp st...

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    $3.31 - $3.31
    $3.31
    $3.31 - $3.31
    $3.31
  • $81.66 - $81.66
    $81.66
    $81.66 - $81.66
    $81.66

    End plug for 4" Membrane Housing 3/4"Brine & 1/2" Product Ports

    PV-EPW40PD3412
    In Stock for Immediate Shipment

    End Plug for 4" End-Clamp SS Membrane Housing with 3/4" Feed/Brine and 1/2" Permeate Ports. Replacement end plus (or end cap) for AMI 4" Diamet...

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    $81.66 - $81.66
    $81.66
    $81.66 - $81.66
    $81.66
  • $4.00 - $4.00
    $4.00
    $4.00 - $4.00
    $4.00

    1/4" Plug for Feed End of Membrane Housing

    3850.002
    Ships in 5 Days

    ¼" Plug for Membrane Housing Feed-End Permeate Port PVC Schedule 80, ¼" MNPT Plugs Fitting, for plugging the permeate port of the feed-end end...

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    $4.00 - $4.00
    $4.00
    $4.00 - $4.00
    $4.00
  • $293.75 - $293.75
    $293.75
    $293.75 - $293.75
    $293.75

    CodeLine 4x40 Fiberglass Membrane Housing | End Port | For (1) 4x40 Membrane Elements | 300 PSI

    40E30N-1WHITE
    In Stock for Immediate Shipment

    CodeLine 4" x 40" 300 PSI Membrane Housing Codeline 40E30N-1 membrane housing accomodates 1) 4" x 40" membrane element. This vessel features e...

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    $293.75 - $293.75
    $293.75
    $293.75 - $293.75
    $293.75
  • $164.70 - $164.70
    $164.70
    $164.70 - $164.70
    $164.70

    4"Dia.x14"L Stainless Steel Membrane Housing

    PV4014SSAU-316
    In Stock for Immediate Shipment

    4x14 Stainless Steel Membrane Housing Pressure Vessel for RO, NF, UF, MF Membranes AMI 316 SS pressure vessels for housing 4" x14" membrane ...

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    $164.70 - $164.70
    $164.70
    $164.70 - $164.70
    $164.70
  • $54.50 - $54.50
    $54.50
    $54.50 - $54.50
    $54.50

    Housing for 3" Residential Membrane (Tankless RO)

    PV3012C
    In Stock for Immediate Shipment

    Membrane Housing for 3 Inch RO Elements (Tankless RO Membranes) Designed for use with 3" Diameter x 12” Length tankless RO Membrane Elements, the...

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    $54.50 - $54.50
    $54.50
    $54.50 - $54.50
    $54.50
  • $66.00 - $66.00
    $66.00
    $66.00 - $66.00
    $66.00

    Filtrate Connector Kit for M-U2521HF09, EP-0052

    FC25
    Ships in 5 Days

    Filtration Connection Kit Membrane Housing Adapter for2.5" Ultrafiltration MembranesAMI Part #: FC25 Manufacturer Part #: EP-0052Adapts M-U2521HF0...

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    $66.00 - $66.00
    $66.00
    $66.00 - $66.00
    $66.00
  • $5.85 - $5.85
    $5.85
    $5.85 - $5.85
    $5.85

    End Clamps for 2.5" for SS End Clamp Style Membrane Housing

    PV-CL25W
    In Stock for Immediate Shipment

    End Clamps for 2.5" SS Membrane Housing Replacement end clamps for securing the end plugs (or end caps) to the vessel body for AMI 2.5...

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    $5.85 - $5.85
    $5.85
    $5.85 - $5.85
    $5.85
  • $13.23 - $13.23
    $13.23
    $13.23 - $13.23
    $13.23

    2.5" Unistrut Pipe Clamp for Mounting 2.5" SS Membrane Housings

    YCUP258-OD
    In Stock for Immediate Shipment

    Unistrut Mounting Clamp for 2.5" SS Membrane Housings Unistrut pipe clamp with bolt & nut for 2.5" Diameter Stainless Steel Pressu...

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    $13.23 - $13.23
    $13.23
    $13.23 - $13.23
    $13.23
  • $450.00 - $450.00
    $450.00
    $450.00 - $450.00
    $450.00

    AMI 4" x 80" Membrane Housing | 316SS | 300 psi | 3/4" x 1/2" Ports | Stainless Steel Pressure Vessel

    PV4080SSAW-316
    In Stock for Immediate Shipment

    4x80 End Clamp Style Stainless Steel Membrane Housing Pressure Vessel for RO, NF, UF, MF Membranes AMI 316 SS end clamp pressure vessels for hou...

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    $450.00 - $450.00
    $450.00
    $450.00 - $450.00
    $450.00
  • $17.50 - $17.50
    $17.50
    $17.50 - $17.50
    $17.50

    U-Pin for 4" SS Membrane Housing

    PV-RR40U
    In Stock for Immediate Shipment

    Replacement U-Pin for 4" Membrane Housing Pressure Vessel For 4" Stainless Steel or PVC U-Pin Style Membrane Housings Replacement U-Pin for sec...

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    $17.50 - $17.50
    $17.50
    $17.50 - $17.50
    $17.50
  • $305.00 - $305.00
    $305.00
    $305.00 - $305.00
    $305.00

    CodeLine 4x80 Fiberglass Membrane Housing | End Port | For (2) 4x40 Membrane Elements | 300 PSI

    40E30N-2WHITE
    In Stock for Immediate Shipment

    CodeLine Vessel 4" x 80" 300 PSI Membrane HousingFor Two (2) 4x40 Membrane Elements Codeline 40E30N-2WHITE membrane housing accomodates (2) 4" ...

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    $305.00 - $305.00
    $305.00
    $305.00 - $305.00
    $305.00
  • $12.31 - $12.31
    $12.31
    $12.31 - $12.31
    $12.31

    External O-Ring Head Seal for 2.5" Protec Seawater Vessels PRO-2.5-1200-EP-1, PRO-2.5-1200-EP-21

    6180330-N
    Ships in 5 Days

    Head Seal O-Ring for Protec PRO 2.5-1200-EP Fiberglass Pressure Vessels O-Ring for Membrane Housing End Caps Replacement O-Ring Seal for Prote...

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    $12.31 - $12.31
    $12.31
    $12.31 - $12.31
    $12.31
  • $17.20 - $17.20
    $17.20
    $17.20 - $17.20
    $17.20

    U-Pin for 2.5" SS Membrane Housing

    PV-RR25U2
    In Stock for Immediate Shipment

    U-Pin for 2.5" SS Membrane Housing Pressure Vessel Replacement U-Pin for securing the end cap in AMI 2.5" Diameter SS Membrane Housing...

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    $17.20 - $17.20
    $17.20
    $17.20 - $17.20
    $17.20
  • $17.20 - $17.20
    $17.20
    $17.20 - $17.20
    $17.20

    U-Pin for 2.5" PVC Membrane Housing

    PV-RR25U1
    In Stock for Immediate Shipment

    U-Pin for 2.5" Membrane Housing Pressure Vessel Replacement U-Pin for securing the end cap in AMI 2.5" Diameter PVC Membrane Housings....

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    $17.20 - $17.20
    $17.20
    $17.20 - $17.20
    $17.20
  • $12.31 - $12.31
    $12.31
    $12.31 - $12.31
    $12.31

    Internal O-Ring PWT Seal for 2.5" Protec Seawater Vessels PRO-2.5-1200-EP-1, PRO-2.5-1200-EP-21

    6180116-N
    In Stock for Immediate Shipment

    PWT Seal - Internal O-Ring for Protec PRO 2.5-1200-EP Fiberglass Pressure Vessels O-Ring for Membrane Housing Replacement O-Ring Seal for Prot...

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    $12.31 - $12.31
    $12.31
    $12.31 - $12.31
    $12.31

Residential Membrane Housings for Reverse Osmosis Systems


We offer standard home RO membrane housings used for point of use and under-the-sink systems and whole house PVC membrane housings that fit standard 1.5”, 1.85” and 3” home membranes, Our residential housings are reliable and ensure optimal performance in home reverse osmosis systems. We offer a variety of AMI RO membrane elements that are designed to fit a variety of systems.

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PVC RO Pressure Vessels


PVC reverse osmosis pressure vessels fit industry-standard membrane elements used in commercial water treatment systems. PVC commercial membrane housings are used to house RO, microfiltration (MF), nanofiltration (NF), and ultrafiltration (UF) membrane elements used for a variety of applications including aquariums, medical facilities, disaster relief, manufacturing, pharmaceuticals, and more.

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Stainless Steel RO Membrane Housings


Stainless steel pressure vessels offer sturdy reliable performance in commercial water treatment systems with high operating pressures such as large hotels and resorts, disaster restoration, manufacturing, and many more. We offer stainless steel RO membrane housings in various sizes to accommodate all industry-standard RO membrane specifications. Available in two different end plug configurations, to allow for easy membrane replacement, these housings are ideal for RO, MF, NF, and UF water treatment systems. Stainless steel housings are ideal for use in food and beverage, restaurants, medical and pharmaceuticals and more.

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Fiberglass RO Pressure Vessels


Fiberglass (FRP) pressure vessels accommodate standard 2.5” and 4” membrane filtration elements. Fiberglass housings are stronger than PVC and less corrosive than stainless steel housings with the capability to withstand very high operating pressure ratings, up to 1200psi. These membrane housings are ideal in applications for seawater desalination, municipal water treatment systems, industrial processing, manufacturing, as well as food and beverage, automotive, and healthcare.

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Experienced RO Membrane Housing Supplier


As an experienced water filtration system distributor, we provide DIY homeowners, OEMs, and proprietors the components they need to install the most effective and efficient water purification system for their application. Since 1983, we have provided AMI RO membrane housings and we work with a large variety of other trusted brands and manufacturers. We only distribute RO membrane housing products that pass our rigorous quality control testing to guarantee a reliable, lasting product for any application whether for a point of use, whole house, or a commercial RO system for manufacturers, car washes, or the pharmaceutical industry.

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