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  • Original price $461.25 - Original price $461.25
    Original price
    $461.25
    $461.25 - $461.25
    Current price $461.25

    4"x40" Hollow Fiber UF 0.9 Membrane Element (1,300 to 3,900 GPD)

    M-U4040HF09
    In Stock for Immediate Shipment

    Hollow Fiber Ultrafiltration (UF) Membrane Elements AMI hollow fiber ultrafiltration (HF UF) membrane elements provide reliable rejection of m...

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    Original price $461.25 - Original price $461.25
    Original price
    $461.25
    $461.25 - $461.25
    Current price $461.25
  • Original price $437.50 - Original price $437.50
    Original price
    $437.50
    $437.50 - $437.50
    Current price $437.50

    4"x40" Hollow Fiber UF 1.5 Membrane Element (860 to 2,580 GPD)

    M-U4040HF15
    In Stock for Immediate Shipment

    Hollow Fiber Ultrafiltration (UF) Membrane Elements AMI hollow fiber ultrafiltration (HF UF) membrane elements provide reliable rejection of m...

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    Original price $437.50 - Original price $437.50
    Original price
    $437.50
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    Current price $437.50
  • Original price $341.33 - Original price $341.33
    Original price
    $341.33
    $341.33 - $341.33
    Current price $341.33

    4"x40" Hydranautics SWC5-LD-4040 Membrane, 1,750 GPD

    SWC5-LD-4040
    Ships in 5 Days

    Hydranautics Seawater Membrane Elements for RO Systems Model Number: SWC5-LD-4040 Permeate Flow Rate*: 1,750 GPD (6.62 m?/d) Salt Rejec...

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    Original price $341.33 - Original price $341.33
    Original price
    $341.33
    $341.33 - $341.33
    Current price $341.33
  • Original price $471.07 - Original price $471.07
    Original price
    $471.07
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    Current price $471.07

    4"x40" | 1,950 GPD | 99.4% Salt Rejection | Watermaker | FilmTec SW30-4040 Seawater Membrane

    SW30-4040
    In Stock for Immediate Shipment

    DuPont FILMTEC SW30-4040 Seawater RO Elements for Watermakers and Marine Systems (Replaces SW30HRLE-4040) DuPont DOW FILMTEC SW30-4040 element...

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    Original price $471.07 - Original price $471.07
    Original price
    $471.07
    $471.07 - $471.07
    Current price $471.07
  • Original price $440.00 - Original price $440.00
    Original price
    $440.00
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    Current price $440.00

    4"x40" | 1950 GPD | 99.6% Salt Rejection | Seawater RO Membrane | Applied Membranes

    M-S4040A
    Ships in 2 days

    AMI 4x40 Seawater Desalination Reverse Osmosis MembranesFor Watermakers and Land-and-Sea Based Seawater Desalinators Highest Salt Rejection S...

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    Original price $440.00 - Original price $440.00
    Original price
    $440.00
    $440.00 - $440.00
    Current price $440.00
  • Original price $281.99 - Original price $281.99
    Original price
    $281.99
    $281.99 - $281.99
    Current price $281.99

    4"x40" | 2,400 GPD | Fiber Wrapped | DOW FilmTec RO Membrane | Replaces BW30-4040 & LC HR-4040

    BW30 PRO-4040
    In Stock for Immediate Shipment

    DuPont FILMTEC™ BW30 PRO-4040 Brackish Water Reverse Osmosis Membrane Element (Direct Replacement for DOW FilmTec BW30-4040 & LC HR-4040 )...

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    Original price $281.99 - Original price $281.99
    Original price
    $281.99
    $281.99 - $281.99
    Current price $281.99
  • Original price $281.99 - Original price $281.99
    Original price
    $281.99
    $281.99 - $281.99
    Current price $281.99

    4"x40" | 2,400 GPD | Tape Wrapped | DuPont FilmTec RO Membrane (Replaces TW30-4040)

    TW30 PRO-4040
    In Stock for Immediate Shipment

    DUPONT FILMTEC™  TW30 PRO-4040 Commercial Reverse Osmosis Membrane Element  Direct Replacement for FilmTec TW30-4040, which is now obsolete.  ...

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    Original price $281.99 - Original price $281.99
    Original price
    $281.99
    $281.99 - $281.99
    Current price $281.99
  • Original price $299.92 - Original price $299.92
    Original price
    $299.92
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    Current price $299.92

    4"x40" | 2,500 GPD | Low Energy| Fiber Wrapped | DuPont FilmTec (LC LE PRO-4040 Replaces DOW LC LE-4040)

    LC LE PRO-4040
    Ships in 5 Days

    FILMTEC™ LC LE PRO-4040 Low Pressure (Low Energy) Commercial RO Membrane Element Direct Replacement for DOW FilmTec LC LE-4040 FilmTec LC LE P...

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    Original price $299.92 - Original price $299.92
    Original price
    $299.92
    $299.92 - $299.92
    Current price $299.92
  • Original price $293.40 - Original price $293.40
    Original price
    $293.40
    $293.40 - $293.40
    Current price $293.40

    4"x40" | 2,750 GPD | Low Energy | Tape Wrap | FilmTec Membrane | Replaces XLE-4040

    XLE PRO-4040
    In Stock for Immediate Shipment

    FILMTEC™ XLE PRO-4040 Brackish Water Reverse Osmosis Membrane Element DUPONT FILMTEC™ XLE PRO-4040 Elements offer better system performance an...

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    Original price $293.40 - Original price $293.40
    Original price
    $293.40
    $293.40 - $293.40
    Current price $293.40
  • Original price $422.17 - Original price $422.17
    Original price
    $422.17
    $422.17 - $422.17
    Current price $422.17

    4"x40" | 97% Salt Rejection | 2,000 GPD | FilmTec NF90 Element

    NF90-4040
    In Stock for Immediate Shipment

    DOW FILMTEC™ NF90-4040 Nanofiltration (NF) Membrane Elements for Commercial Systems The DOW FILMTEC NF90-4040 membrane elements provide high p...

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    Original price $422.17 - Original price $422.17
    Original price
    $422.17
    $422.17 - $422.17
    Current price $422.17
  • Original price $422.17 - Original price $422.17
    Original price
    $422.17
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    Current price $422.17

    4"x40" | 97% Salt Rejection | 2,500 GPD | FilmTec NF270 Element

    NF270-4040
    In Stock for Immediate Shipment

    DOW FILMTEC NF270-4040 Nanofiltration (NF) Membrane Elements for Commercial Systems DOW FILMTEC NF270-4040 Elements are ideal for remo...

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    Original price $422.17 - Original price $422.17
    Original price
    $422.17
    $422.17 - $422.17
    Current price $422.17
  • Original price $598.21 - Original price $598.21
    Original price $598.21
    $635.70
    $635.70 - $635.70
    Current price $635.70

    4"x40" | Full-Fit | Heat-Sanitizable | 2,400 GPD | FilmTec RO

    HSRO-4040-FF
    Ships in 5 Days

    DOW FILMTEC™ HSRO-4040-FF Heat-Sanitizable Full-Fit RO Elements DOW FILMTEC™ HSRO-4040-FF Elements are heat-sanitizable reverse osmosis elemen...

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    Original price $598.21 - Original price $598.21
    Original price $598.21
    $635.70
    $635.70 - $635.70
    Current price $635.70
  • Original price $594.95 - Original price $594.95
    Original price
    $594.95
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    Current price $594.95

    4"x40" | Full-Fit | Sanitary| 2,400 GPD | FilmTec RO Membrane

    RO-4040-FF
    Ships in 7 days

    DOW FILMTEC™ RO-4040-FF Sanitary-Grade Full-Fit Elements for Sanitary Applications DOW FILMTEC RO-4040-FF elements deliver high flux and outst...

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    Original price $594.95 - Original price $594.95
    Original price
    $594.95
    $594.95 - $594.95
    Current price $594.95
  • Original price $379.00 - Original price $379.00
    Original price
    $379.00
    $379.00 - $379.00
    Current price $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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    Original price $379.00 - Original price $379.00
    Original price
    $379.00
    $379.00 - $379.00
    Current price $379.00
  • Original price $678.00 - Original price $678.00
    Original price
    $678.00
    $678.00 - $678.00
    Current price $678.00

    8"x40" Brackish Water | 10,500 GPD | 225 psi | 99.6% Rej | 400 ft2 | LG Chem RO Membrane

    LG BW 400 R
    In Stock for Immediate Shipment

    LG Chem Nano H2O LG BW 400 R Brackish Water (BWRO) Reverse Osmosis Membrane LG BW 400 R high rejection brackish water RO membranes offer a combin...

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    Original price $678.00 - Original price $678.00
    Original price
    $678.00
    $678.00 - $678.00
    Current price $678.00
  • Original price $175.06 - Original price $175.06
    Original price $175.06
    $175.06
    $175.06 - $175.06
    Current price $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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    Original price $175.06 - Original price $175.06
    Original price $175.06
    $175.06
    $175.06 - $175.06
    Current price $175.06
  • Original price $347.50 - Original price $347.50
    Original price
    $347.50
    $347.50 - $347.50
    Current price $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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    Original price $347.50 - Original price $347.50
    Original price
    $347.50
    $347.50 - $347.50
    Current price $347.50
  • Original price $450.00 - Original price $450.00
    Original price
    $450.00
    $450.00 - $450.00
    Current price $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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    Original price $450.00 - Original price $450.00
    Original price
    $450.00
    $450.00 - $450.00
    Current price $450.00
  • Original price $9.00 - Original price $9.00
    Original price
    $9.00
    $9.00 - $9.00
    Current price $9.00

    Brine Seal for Standard 4.0" Elements

    BS-4.0
    In Stock for Immediate Shipment

    Brine Seal for Standard 4.0" Diameter Membrane ElementsPart #: BS-4.0

    Original price $9.00 - Original price $9.00
    Original price
    $9.00
    $9.00 - $9.00
    Current price $9.00
  • Original price $47.50 - Original price $47.50
    Original price
    $47.50
    $47.50 - $47.50
    Current price $47.50

    CodeLine 4" End Adapter for 40E100 Pressure Vessel

    50137
    In Stock for Immediate Shipment

    CodeLine 4" End Adapter for 40E100 Series Pressure Vessels Internal adapter for CodeLine 40E100 Series Pressure Vessels to connect en...

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    Original price $47.50 - Original price $47.50
    Original price
    $47.50
    $47.50 - $47.50
    Current price $47.50
  • Original price $832.50 - Original price $832.50
    Original price
    $832.50
    $832.50 - $832.50
    Current price $832.50

    CodeLine 4" End Port Membrane Housings, 1000 PSI

    40E100-1
    In Stock for Immediate Shipment

    40E Series 4" End Entry Membrane Housing Pressure Vessels for single 4"x40" SWRO Membrane Element CodeLine 40E Series Membrane Housing is desi...

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    Original price $832.50 - Original price $832.50
    Original price
    $832.50
    $832.50 - $832.50
    Current price $832.50
  • Original price $293.75 - Original price $293.75
    Original price
    $293.75
    $293.75 - $293.75
    Current price $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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    Original price $293.75 - Original price $293.75
    Original price
    $293.75
    $293.75 - $293.75
    Current price $293.75
  • Original price $305.00 - Original price $305.00
    Original price
    $305.00
    $305.00 - $305.00
    Current price $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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    Original price $305.00 - Original price $305.00
    Original price
    $305.00
    $305.00 - $305.00
    Current price $305.00
  • Original price $21.25 - Original price $21.25
    Original price
    $21.25
    $21.25 - $21.25
    Current price $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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    Original price $21.25 - Original price $21.25
    Original price
    $21.25
    $21.25 - $21.25
    Current price $21.25
  • Original price $81.66 - Original price $81.66
    Original price
    $81.66
    $81.66 - $81.66
    Current price $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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    Original price $81.66 - Original price $81.66
    Original price
    $81.66
    $81.66 - $81.66
    Current price $81.66
  • Original price $81.66 - Original price $81.66
    Original price
    $81.66
    $81.66 - $81.66
    Current price $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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    Original price $81.66 - Original price $81.66
    Original price
    $81.66
    $81.66 - $81.66
    Current price $81.66
  • Original price $6.30 - Original price $6.30
    Original price
    $6.30
    $6.30 - $6.30
    Current price $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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    Original price $6.30 - Original price $6.30
    Original price
    $6.30
    $6.30 - $6.30
    Current price $6.30
  • Original price $46.98 - Original price $46.98
    Original price
    $46.98
    $46.98 - $46.98
    Current price $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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    Original price $46.98 - Original price $46.98
    Original price
    $46.98
    $46.98 - $46.98
    Current price $46.98
  • Original price $37.50 - Original price $37.50
    Original price
    $37.50
    $37.50 - $37.50
    Current price $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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    Original price $37.50 - Original price $37.50
    Original price
    $37.50
    $37.50 - $37.50
    Current price $37.50
  • Original price $6.00 - Original price $6.00
    Original price
    $6.00
    $6.00 - $6.00
    Current price $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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    Original price $6.00 - Original price $6.00
    Original price
    $6.00
    $6.00 - $6.00
    Current price $6.00
  • Original price $43.00 - Original price $43.00
    Original price $43.00
    $43.00
    $43.00 - $43.00
    Current price $43.00

    Mounting Saddle for 4" Dia. Membrane Housing Pressure Vessel | CodeLine

    45058
    In Stock for Immediate Shipment

    CodeLine 4" Membrane Housing Pressure Vessel Mounting Saddle Pad Saddle pad for mounting 4" Diameter Fiberglass Pressure Vessel membrane housin...

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    Original price $43.00 - Original price $43.00
    Original price $43.00
    $43.00
    $43.00 - $43.00
    Current price $43.00
  • Original price $44.10 - Original price $44.10
    Original price $44.10
    $44.10
    $44.10 - $44.10
    Current price $44.10

    Mounting Strap 4" Dia. Membrane Housing Pressure Vessel | CodeLine

    47459
    In Stock for Immediate Shipment

    CodeLine 4" Membrane Housing Pressure Vessel Mounting Strap Assembly Strap assembly for mounting 4" Diameter Fiberglass Pressure Vessel membran...

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    Original price $44.10 - Original price $44.10
    Original price $44.10
    $44.10
    $44.10 - $44.10
    Current price $44.10
  • Original price $79.80 - Original price $79.80
    Original price
    $79.80
    $79.80 - $79.80
    Current price $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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    Original price $79.80 - Original price $79.80
    Original price
    $79.80
    $79.80 - $79.80
    Current price $79.80
  • Original price $17.50 - Original price $17.50
    Original price
    $17.50
    $17.50 - $17.50
    Current price $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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    Original price $17.50 - Original price $17.50
    Original price
    $17.50
    $17.50 - $17.50
    Current price $17.50