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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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  • $9.02 - $9.02
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    $9.02 - $9.02
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    Housing for Residential Membrane | In: Straight | Out: Elbow

    PV2012PME
    In Stock for Immediate Shipment

    Membrane Housings for Home RO Water Treatment Systems For Standard Home RO Membranes 1.5" to 2" Diameter x 12" Length Designed for use with stan...

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    $9.02 - $9.02
    $9.02
    $9.02 - $9.02
    $9.02
  • $6.00 - $6.00
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    $6.00 - $6.00
    $6.00

    Internal O-Ring for Membrane Housing End Plug to PWT

    PV-OR40-210
    In Stock for Immediate Shipment

    O-Ring for Membrane Permeate Tube to Housing End Caps Replacement O-Ring Seal for membrane housing pressure vessel end caps. Internal...

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    $6.00 - $6.00
    $6.00
    $6.00 - $6.00
    $6.00
  • $6.30 - $6.30
    $6.30
    $6.30 - $6.30
    $6.30

    External O-Ring for 4" End Plug of Membrane Housing

    PV-OR40-342
    In Stock for Immediate Shipment

    O-Ring for 4" Membrane Housing End Caps Replacement O-Ring Seal for membrane housing pressure vessel end caps. External O-ring which ...

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    $6.30 - $6.30
    $6.30
    $6.30 - $6.30
    $6.30
  • $379.00 - $379.00
    $379.00
    $379.00 - $379.00
    $379.00

    4x40 PVC Membrane Housing Pressure Vessel for RO Membranes

    PV4040PWG
    Ships in 5 Days

    4x40 PVC Membrane Housing Pressure Vessel for RO Membranes AMI PVC pressure vessels for housing 4" x 40" membrane elements are ideal for low...

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    $379.00 - $379.00
    $379.00
    $379.00 - $379.00
    $379.00
  • $17.63 - $17.63
    $17.63
    $17.63 - $17.63
    $17.63

    Housing for Residential Membrane | In: Elbow | Out: Elbow

    PV2012FS
    In Stock for Immediate Shipment

    Membrane Housing Pressure Vessels for Home RO Systems For Standard Home RO Membranes 1.5" to 1.85" Diameter 90° Elbow 1/8" In/Out Connections D...

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    $17.63 - $17.63
    $17.63
    $17.63 - $17.63
    $17.63
  • $347.50 - $347.50
    $347.50
    $347.50 - $347.50
    $347.50

    AMI 4" x 40" Membrane Housing | 316SS | 300 psi | 1/2" x 1/2" Ports | Stainless Steel Pressure Vessel

    PV4040SSAW-316
    In Stock for Immediate Shipment

    4x40 End Clamp Style Stainless Steel Membrane Housing Pressure Vessel for RO, NF, UF, MF Membrane Systems AMI 316 SS end clamp pressure vessels ...

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    $347.50 - $347.50
    $347.50
    $347.50 - $347.50
    $347.50
  • $79.80 - $79.80
    $79.80
    $79.80 - $79.80
    $79.80

    Replacement End Plug for 4" SS or PVC Membrane Housing | U-Pin Style

    PV-EP40PD1212
    In Stock for Immediate Shipment

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

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    $79.80 - $79.80
    $79.80
    $79.80 - $79.80
    $79.80
  • $255.00 - $255.00
    $255.00
    $255.00 - $255.00
    $255.00

    2.5x21 PVC Membrane Housing Pressure Vessel for RO Membrane

    PV2521PVCAU
    In Stock for Immediate Shipment

    2.5 x 21 PVC Membrane Housing Pressure Vessel for RO Membranes AMI PVC pressure vessels for housing 2.5" x 21" membrane elements are ideal for low...

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    $255.00 - $255.00
    $255.00
    $255.00 - $255.00
    $255.00
  • $6.00 - $6.00
    $6.00
    $6.00 - $6.00
    $6.00

    External O-Ring for 2.5" End Plug for SS & PVC Membrane Housings

    PV-OR40-330
    In Stock for Immediate Shipment

    O-Ring for Membrane Housing End Caps Replacement O-Ring Seal for membrane housing pressure vessel end caps. External O-ring which sea...

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    $6.00 - $6.00
    $6.00
    $6.00 - $6.00
    $6.00
  • $46.98 - $46.98
    $46.98
    $46.98 - $46.98
    $46.98

    Filtrate Connector for M-U4040HF09 Ultrafiltration Membrane

    AD-40HF
    In Stock for Immediate Shipment

    Filtrate Connector Membrane Housing Adapter for 4" Hollow Fiber Ultrafiltration MembraneAD-40HF Filtrate connector adapts hollow fiber UF membrane ...

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    $46.98 - $46.98
    $46.98
    $46.98 - $46.98
    $46.98
  • $312.50 - $312.50
    $312.50
    $312.50 - $312.50
    $312.50

    4" x 40" Membrane Housing | 316SS | 300 psi | U-Pin Style | 1/2" Ports | Stainless Steel Pressure Vessel

    PV4040SSAU-316
    In Stock for Immediate Shipment

    4x40 Stainless Steel Membrane Housing Pressure Vessel for RO, NF, UF, MF Membranes Applied Membranes 316 SS pressure vessels for housing 4040 mem...

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    $312.50 - $312.50
    $312.50
    $312.50 - $312.50
    $312.50
  • $316.00 - $316.00
    $316.00
    $316.00 - $316.00
    $316.00

    2.5" x 40" PVC Membrane Housing

    PV2540PVCAU
    In Stock for Immediate Shipment

    2.5 x 40 PVC Membrane Housing Pressure Vessel for RO Membranes AMI PVC pressure vessels for housing 2.5" x 40" membrane elements are ideal for lo...

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    $316.00 - $316.00
    $316.00
    $316.00 - $316.00
    $316.00
  • $614.99 - $614.99
    $614.99
    $614.99 - $614.99
    $614.99

    2.5" x 40" Fiberglass/FRP Seawater Membrane Housing Pressure Vessel for Watermaker

    PV2540A1200E
    In Stock for Immediate Shipment

    2.5 x 40 Fiberglass Pressure Vessel Membrane Housing for Seawater RO Membranes AMI fiberglass SWRO 1200 psi membrane housings are specially desi...

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    $614.99 - $614.99
    $614.99
    $614.99 - $614.99
    $614.99
  • $230.55 - $230.55
    $230.55
    $230.55 - $230.55
    $230.55

    2.5"Dia.x40"L 316 Stainless Steel Membrane Housing

    PV2540SSAU-316
    In Stock for Immediate Shipment

    2.5 x 40Stainless Steel Membrane Housing Pressure Vessel for RO, NF, UF, MF Membranes AMI 316 SS pressure vessels for housing 2.5" x40" membrane ...

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    $230.55 - $230.55
    $230.55
    $230.55 - $230.55
    $230.55
  • $175.06 - $175.06
    $175.06
    $175.06
    $175.06 - $175.06
    $175.06

    AMI 4" x 40" Membrane Housing | 304SS | 300 psi | 1/2" x 1/2" Ports | Stainless Steel Pressure Vessel

    PV4040SSAW-304
    In Stock for Immediate Shipment

    4x40 End Clamp Style Stainless Steel Membrane Housing Pressure Vessel for RO, NF, UF, MF Membrane Systems AMI 304 SS end clamp pressure vessels ...

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    $175.06 - $175.06
    $175.06
    $175.06
    $175.06 - $175.06
    $175.06
  • $66.60 - $66.60
    $66.60
    $66.60 - $66.60
    $66.60

    End Plug for 2.5" PVC Membrane Housing

    PV-EP25U
    In Stock for Immediate Shipment

    End Plug for 2.5" Membrane Housing Pressure Vessel Replacement end plugs (or end caps) for AMI 2.5" Diameter PVC Membrane Housings. Includes int...

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    $66.60 - $66.60
    $66.60
    $66.60 - $66.60
    $66.60
  • $35.50 - $35.50
    $35.50
    $35.50 - $35.50
    $35.50

    End plug for PRODUCT END of 2.5" SS Membrane Housing w/O-Ring

    PV-EP25GWD
    In Stock for Immediate Shipment

    End Plug for 2.5" SS Membrane Housing Pressure Vessel Dual Port for Product End of Vessel Replacement end plugs (or end caps) fo...

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    $35.50 - $35.50
    $35.50
    $35.50 - $35.50
    $35.50
  • $16.00 - $16.00
    $16.00
    $16.00 - $16.00
    $16.00

    2.5"Dia. PVC Housing Click-Lock Style Mounting Clamp

    1949.025
    In Stock for Immediate Shipment

    Mounting Clamp for 2.5" PVC Membrane Housings 2.5" Click-Lock Style Pipe Clamp for Mounting 2.5" PVC Membrane Housing Pressure vessel...

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    $16.00 - $16.00
    $16.00
    $16.00 - $16.00
    $16.00
  • $230.55 - $230.55
    $230.55
    $230.55 - $230.55
    $230.55

    AMI 2.5" x 40" Membrane Housing | 316SS | 300 psi | Stainless Steel Pressure Vessel

    PV2540SSAW-316
    In Stock for Immediate Shipment

    2.5 x 40 End Clamp Style Stainless Steel Membrane Housing Pressure Vessel for RO, NF, UF, MF Membrane Systems AMI 316 SS end clamp pressure vess...

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    $230.55 - $230.55
    $230.55
    $230.55 - $230.55
    $230.55
  • $35.50 - $35.50
    $35.50
    $35.50 - $35.50
    $35.50

    End plug for FEED END of 2.5" SS Membrane Housing w/O-Ring

    PV-EP25GWS
    In Stock for Immediate Shipment

    End Plug for 2.5" SS Membrane Housing Pressure Vessel Single Port for Feed End of Vessel Replacement end plugs (or end caps) for...

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    $35.50 - $35.50
    $35.50
    $35.50 - $35.50
    $35.50
  • $503.17 - $503.17
    $503.17
    $503.17 - $503.17
    $503.17

    2.5" x 21" Fiberglass/FRP Seawater Membrane Housing Pressure Vessel for Watermaker

    PV2521A1200E
    In Stock for Immediate Shipment

    2.5 x 21 Fiberglass Pressure Vessel Membrane Housing for Seawater RO Membranes AMI fiberglass SWRO 1200 psi membrane housings are specially desi...

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    $503.17 - $503.17
    $503.17
    $503.17 - $503.17
    $503.17
  • $135.00 - $135.00
    $135.00
    $135.00 - $135.00
    $135.00

    AMI 2.5" x 21" Membrane Housing | 316SS | 300 psi | Stainless Steel Pressure Vessel

    PV2521SSAW-316
    In Stock for Immediate Shipment

    2.5 x 21 End Clamp Style Stainless Steel Membrane Housing Pressure Vessel for RO, NF, UF, MF Membrane Systems AMI 316 SS end clamp pressure vess...

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    $135.00 - $135.00
    $135.00
    $135.00 - $135.00
    $135.00
  • $360.90 - $360.90
    $360.90
    $360.90 - $360.90
    $360.90

    4"Dia.x21"L PVC Membrane Housing

    PV4021PWG
    In Stock for Immediate Shipment

    4 x 21 PVC Membrane Housing Pressure Vessel for RO Membranes AMI PVC pressure vessels for housing 4" x 21" membrane elements are ideal for lowe...

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    $360.90 - $360.90
    $360.90
    $360.90 - $360.90
    $360.90
  • $7.00 - $7.00
    $7.00
    $7.00 - $7.00
    $7.00

    1/2"Plug for Feed End of Membrane Housing

    3850.005
    Ships in 5 Days

    ½" Plug for Membrane Housing Feed-End Permeate Port PVC Schedule 80, ½" MNPT Plug Fitting, for plugging the permeate port of the feed-end end ...

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    $7.00 - $7.00
    $7.00
    $7.00 - $7.00
    $7.00
  • $35.28 - $35.28
    $35.28
    $35.28 - $35.28
    $35.28

    1/4"Male x 1/2"Flare Connector for FRP Membrane Housings PARKER

    8-4 FTX-SS
    Ships in 5 Days

    Fittings for AMI 2.5" Seawater Membrane Housings 1/4" Male Pipe Thread to 1/2" Flare Tube Connectors. Feed/Brine Port Fittings for use w...

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    $35.28 - $35.28
    $35.28
    $35.28 - $35.28
    $35.28
  • $37.49 - $37.49
    $37.49
    $37.49 - $37.49
    $37.49

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

    PV-EPW25PD3814
    In Stock for Immediate Shipment

    End Plug for 2.5" End-Clamp SS Membrane Housing Replacement end plugs (or end caps) for AMI 2.5" Diameter Stainless Steel End-Clamp Style Membr...

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    $37.49 - $37.49
    $37.49
    $37.49 - $37.49
    $37.49
  • $212.50 - $212.50
    $212.50
    $212.50 - $212.50
    $212.50

    4"Dia.x21"L Stainless Steel Membrane Housing

    PV4021SSAU-316
    In Stock for Immediate Shipment

    4x21 Stainless Steel Membrane Housing Pressure Vessel for RO, NF, UF, MF Membranes AMI 316 SS pressure vessels for housing 4" x21" membrane ...

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    $212.50 - $212.50
    $212.50
    $212.50 - $212.50
    $212.50
  • $25.50 - $25.50
    $25.50
    $25.50 - $25.50
    $25.50

    4" Unistrut Pipe Clamp for Mounting 4" SS Membrane Housings

    YCUP418-OD
    In Stock for Immediate Shipment

    Unistrut Mounting Clamp for 4" SS Membrane Housings Unistrut pipe clamp with bolt & nut for 4" Diameter Stainless Steel Pressure ...

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    $25.50 - $25.50
    $25.50
    $25.50 - $25.50
    $25.50
  • $81.66 - $81.66
    $81.66
    $81.66 - $81.66
    $81.66

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

    PV-EPW40PD1212
    In Stock for Immediate Shipment

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

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

    Replacement O-Ring for Home RO Membrane Housing PV2012PME

    PV-OR20-227
    In Stock for Immediate Shipment

    Replacement O-Ring for Home RO Membrane Housing Replacement O-Ring Seal for home RO membrane housing PV2012PME for 1.8" to 2" Diameter x 12"L M...

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    $3.31 - $3.31
    $3.31
    $3.31 - $3.31
    $3.31
  • $135.00 - $135.00
    $135.00
    $135.00 - $135.00
    $135.00

    AMI 2.5" x 14" Membrane Housing | 316SS | 300 psi | Stainless Steel Pressure Vessel

    PV2514SSAW-316
    In Stock for Immediate Shipment

    2.5 x 14 End Clamp Style Stainless Steel Membrane Housing Pressure Vessel for RO, NF, UF, MF Membrane Systems AMI 316 SS end clamp pressure vess...

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

    2.5"Dia.x14"L 316 Stainless Steel Membrane Housing

    PV2514SSAU-316
    In Stock for Immediate Shipment

    2.5 x 14 Stainless Steel Membrane Housing Pressure Vessel for RO, NF, UF, MF Membranes AMI 316 SS pressure vessels for housing 2.5" x14" membrane...

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

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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