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Reverse Osmosis

We can special order from many different suppliers if you cannot find what you are looking for. Please send us an email at info@onlinewaterparts.com and a dedicated account manager will assist you in finding the correct parts for your equipment.

Original price $376.22 - Original price $376.22
Original price
$376.22
$376.22 - $376.22
Current price $376.22

Vitec3000-45lb Avista Antiscalant/Dispersant

Vitec 3000 is a proprietary liquid antiscalant/dispersant designed to inhibit scale and disperse colloidal particles in cellulose acetate and thin ...

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Original price $376.22 - Original price $376.22
Original price
$376.22
$376.22 - $376.22
Current price $376.22
Original price $396.03 - Original price $396.03
Original price
$396.03
$396.03 - $396.03
Current price $396.03

LCLE4040 - 4" x 40" Reverse Osmosis Membrane Element Filmtec Membrane

In stock

4" x 40" Dow Filmtec RO membrane element. Large commercial, Low energy. 2,900 GPD flowrate. 99.5% nominal rejection.

Original price $396.03 - Original price $396.03
Original price
$396.03
$396.03 - $396.03
Current price $396.03
Original price $320.00 - Original price $320.00
Original price
$320.00
$320.00 - $320.00
Current price $320.00

BW30-4040 - 4" x 40" Reverse Osmosis Membrane Element Filmtec Membrane

In stock

4" x 40" Dow Filmtec RO membrane element. 2,400 GPD flowrate. 99.5% nominal rejection.

Original price $320.00 - Original price $320.00
Original price
$320.00
$320.00 - $320.00
Current price $320.00
Original price $387.02 - Original price $387.02
Original price
$387.02
$387.02 - $387.02
Current price $387.02

CPA2-4040 - 4" x 40" Reverse Osmosis Membrane Element Hydranautics Membrane

In stock

4" x 40" Hydranautics reverse osmosis membrane element. 2,250 GPD flowrate. 99.3% nominal rejection. 225 test pressure.

Original price $387.02 - Original price $387.02
Original price
$387.02
$387.02 - $387.02
Current price $387.02
Original price $288.02 - Original price $288.02
Original price
$288.02
$288.02 - $288.02
Current price $288.02

ESPA1-LD-4040 4" X 40" Reverse Osmosis Membrane Element Hydranautics Membrane

In stock

4" X 40" Reverse Osmosis Membrane Element Hydranautics Membrane ESPA1-LD-4040. 2,450 GPD Flow Rate. 98% Nominal Rejection. 150PSI Test Pressure.

Original price $288.02 - Original price $288.02
Original price
$288.02
$288.02 - $288.02
Current price $288.02
Original price $263.59 - Original price $263.59
Original price
$263.59
$263.59 - $263.59
Current price $263.59

BW30-2540 - 8" x 40" Reverse Osmosis Membrane Element Filmtec Membrane

In stock

8" x 40" Dow Filmtec RO membrane element. Industrial Grade, High Rejection, Brackish water. 1,000 GPD flowrate. 99.5% nominal rejection. ?ÿ

Original price $263.59 - Original price $263.59
Original price
$263.59
$263.59 - $263.59
Current price $263.59
Original price $594.03 - Original price $594.03
Original price
$594.03
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Current price $594.03

P111-45lb - Avista High pH Powdered Membrane Cleaner

RoClean P111 is a high pH powder cleaner designed to remove silt and organic foulants such as colloidal silica, clays, organic color and bacterial ...

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Original price $594.03 - Original price $594.03
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$594.03
$594.03 - $594.03
Current price $594.03
Original price $565.53 - Original price $565.53
Original price
$565.53
$565.53 - $565.53
Current price $565.53

P303-45lb - Avista Low pH Powdered Membrane Cleaner

RoClean P303 is a low pH powder formulation designed to remove metal foulants such as iron, manganese, and aluminum and to remove calcium carbonate...

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Original price $565.53 - Original price $565.53
Original price
$565.53
$565.53 - $565.53
Current price $565.53
Original price $432.02 - Original price $432.02
Original price
$432.02
$432.02 - $432.02
Current price $432.02

XLE-4021 - 4" x 21" Reverse Osmosis Membrane Element Filmtec Membrane

In stock

4" x 21" Dow Filmtec RO membrane element. 1,025 GPD flowrate. 99% nominal rejection.

Original price $432.02 - Original price $432.02
Original price
$432.02
$432.02 - $432.02
Current price $432.02
Original price $455.00 - Original price $455.00
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$455.00
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Current price $455.00

Avista L811-45lb - Avista High pH Liquid Membrane Cleaner

RoClean L811 is a high pH liquid cleaner developed to remove calcium, barium and strontium sulfate scales from spiral wound thin film elements.

Original price $455.00 - Original price $455.00
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$455.00
$455.00 - $455.00
Current price $455.00
Original price $378.02 - Original price $378.02
Original price
$378.02
$378.02 - $378.02
Current price $378.02

ESPA2-4040 4" X 40" Reverse Osmosis Membrane Element Hydranautics Membrane

In stock

4" X 40" Reverse Osmosis Membrane Element Hydranautics Membrane ESPA2-4040. 1,900 GPD Flow Rate. 99.6% Salt Rejection. 150PSI Test Pressure.

Original price $378.02 - Original price $378.02
Original price
$378.02
$378.02 - $378.02
Current price $378.02
Original price $333.02 - Original price $333.02
Original price
$333.02
$333.02 - $333.02
Current price $333.02

LCHR-4040 - 4" x 40" Reverse Osmosis Membrane Element Filmtec Membrane

In stock

4" x 40" Dow Filmtec RO membrane element. Large commercial, Low energy. 2,500 GPD flowrate. 99.1% nominal rejection.

Original price $333.02 - Original price $333.02
Original price
$333.02
$333.02 - $333.02
Current price $333.02
Original price $248.42 - Original price $248.42
Original price
$248.42
$248.42 - $248.42
Current price $248.42

RE4040-BE - 4" x 40" Reverse Osmosis Membrane Element Filmtec Membrane

In stock

4" x 40" Dow Filmtec RO membrane element. 2,400 GPD flowrate. 99.7% nominal rejection.

Original price $248.42 - Original price $248.42
Original price
$248.42
$248.42 - $248.42
Current price $248.42
Original price $1,814.50 - Original price $1,814.50
Original price
$1,814.50
$1,814.50 - $1,814.50
Current price $1,814.50

RO-390-FF - 8" x 40" Reverse Osmosis Membrane Element Filmtec Membrane

In stock

8" x 40" Dow Filmtec RO Membrane element, Full-Fit configuration. 9,000 GPD flowrate. 99.5% nominal rejection.

Original price $1,814.50 - Original price $1,814.50
Original price
$1,814.50
$1,814.50 - $1,814.50
Current price $1,814.50
Original price $705.59 - Original price $705.59
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$705.59
$705.59 - $705.59
Current price $705.59

RO4040-FF - 4" x 40" Reverse Osmosis Membrane Element Filmtec Membrane

In stock

4" x 40" Dow Filmtec RO membrane element. Full Fit. 2,400 GPD flowrate. Stabilized Salt Rejection 99.5%.

Original price $705.59 - Original price $705.59
Original price
$705.59
$705.59 - $705.59
Current price $705.59
Original price $225.02 - Original price $225.02
Original price
$225.02
$225.02 - $225.02
Current price $225.02

T2026-200 - 2" x 26" Reverse Osmosis Membrane

In stock

2" x 26" TFC RO membrane element. 200 GPD flowrate.

Original price $225.02 - Original price $225.02
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$225.02
$225.02 - $225.02
Current price $225.02
Original price $270.02 - Original price $270.02
Original price
$270.02
$270.02 - $270.02
Current price $270.02

XLE-2521 - 2.5" x 21" Reverse Osmosis Membrane Element Filmtec Membrane

In stock

2.5" x 21" Dow Filmtec RO membrane element.?ÿ365 GPD flowrate. Stabilized Salt Rejection 99.0%

Original price $270.02 - Original price $270.02
Original price
$270.02
$270.02 - $270.02
Current price $270.02
Original price $404.00 - Original price $404.00
Original price
$404.00
$404.00 - $404.00
Current price $404.00

XLE-4040 - 4" x 40" Reverse Osmosis Membrane Element Filmtec Membrane

In stock

4" x 40" Dow Filmtec RO membrane element. 2,600 GPD flowrate. Stabilized Salt Rejection 99.0%

Original price $404.00 - Original price $404.00
Original price
$404.00
$404.00 - $404.00
Current price $404.00
Original price $288.02 - Original price $288.02
Original price
$288.02
$288.02 - $288.02
Current price $288.02

ESPA1-4040 4" X 40" Reverse Osmosis Membrane Element Hydranautics Membrane

In stock

4" X 40" Reverse Osmosis Membrane Element Hydranautics Membrane ESPA1-4040. 2,600 GPD Flow Rate. 98% Nominal Rejection. 150PSI Test Pressure. New p...

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Original price $288.02 - Original price $288.02
Original price
$288.02
$288.02 - $288.02
Current price $288.02
Original price $505.83 - Original price $505.83
Original price
$505.83
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Current price $505.83

L403-45lb - Avista Low pH Liquid Membrane Cleaner

RoClean L403 is a low pH liquid cleaner designed to remove metal foulants such as iron, manganese, and aluminum as well as calcium carbonate scale ...

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Original price $505.83 - Original price $505.83
Original price
$505.83
$505.83 - $505.83
Current price $505.83
Original price $457.23 - Original price $457.23
Original price
$457.23
$457.23 - $457.23
Current price $457.23

Avista L811-45lb - Avista High pH Liquid Membrane Cleaner

RoClean L811 is a high pH liquid cleaner developed to remove calcium, barium and strontium sulfate scales from spiral wound thin film elements.

Original price $457.23 - Original price $457.23
Original price
$457.23
$457.23 - $457.23
Current price $457.23
Original price $1,006.26 - Original price $1,006.26
Original price
$1,006.26
$1,006.26 - $1,006.26
Current price $1,006.26

XLE-440 - 8" x 40" Reverse Osmosis Membrane Element Filmtec Membrane

In stock

8Ÿ?? x 40 Ÿ?� Dow Filmtec RO Membrane element. Extra low energy, High productivity. 14,000 GPD flowrate. 99% nominal rejection.

Original price $1,006.26 - Original price $1,006.26
Original price
$1,006.26
$1,006.26 - $1,006.26
Current price $1,006.26
Original price $855.05 - Original price $855.05
Original price
$855.05
$855.05 - $855.05
Current price $855.05

BW30PRO-365 - 8" x 40" Reverse Osmosis Membrane Element Filmtec Membrane

26 in stock

8" x 40" Dow Filmtec RO membrane element. Industrial Grade, High Rejection, Brackish water. 9,500 GPD flowrate. 99.5% nominal rejection. ‹¯¨Limited...

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Original price $855.05 - Original price $855.05
Original price
$855.05
$855.05 - $855.05
Current price $855.05