★★★★★ Serving 60,000+ customers with 6,200+ five star reviews.
FILTER FINDER

What system do you have?

Brand
Select your brand...
Model
Select your model...

RO Filters & Membranes

Sort by
Best Selling
Hydranautics CPA5 Max RO Membrane Brackish 12000 GPD 8"x40" CPA5-Max - ESP Water
Free Shipping
Hydranautics
Hydranautics CPA5 Max RO Membrane Brackish 12000 GPD 8"x40"
(0)
$819.00
Can be used in primary or pretreatment, and are suited for global municipalities and industries.
Hydranautics CPA5 Max RO Membrane Brackish 12000 GPD 8"x40" CPA5-Max - ESP Water
Free Shipping
Hydranautics
Hydranautics CPA5 Max RO Membrane Brackish 12000 GPD 8"x40"
12000 GPD
$819.00
(0)
Hydranautics CPA5 - LD RO Membrane Brackish 11000 GPD 8"x40" CPA5-LD - ESP Water
Free Shipping
Hydranautics
Hydranautics CPA5-LD RO Membrane Brackish 11000 GPD 8"x40"
(0)
$769.00
Can be used in primary or pretreatment, and are suited for global municipalities and industries.
Hydranautics CPA5 - LD RO Membrane Brackish 11000 GPD 8"x40" CPA5-LD - ESP Water
Free Shipping
Hydranautics
Hydranautics CPA5-LD RO Membrane Brackish 11000 GPD 8"x40"
11000 GPD
$769.00
(0)
FilmTec SW30HRLE - 370/34 RO Membrane Seawater 6700 GPD 8"x40" SW30HRLE-370/34 - ESP Water
Free Shipping
Filmtec
FilmTec SW30HRLE-370/34 RO Membrane Seawater 6700 GPD 8"x40"
(0)
$1019.00
TFC Outer Wrap
FilmTec SW30HRLE - 370/34 RO Membrane Seawater 6700 GPD 8"x40" SW30HRLE-370/34 - ESP Water
Free Shipping
Filmtec
FilmTec SW30HRLE-370/34 RO Membrane Seawater 6700 GPD 8"x40"
6700 GPD
$1019.00
(0)
Hydranautics CPA5 - LD - 4040 RO Membrane Low Fouling Brackish 2,100 GPD 4"x40" CPA5-LD-4040 - ESP Water
Free Shipping
Hydranautics
Hydranautics CPA5-LD-4040 RO Membrane Low Fouling Brackish 2,100 GPD 4"x40"
(0)
$319.00
Can be used in primary or pretreatment, and are suited for global municipalities and industries.
Hydranautics CPA5 - LD - 4040 RO Membrane Low Fouling Brackish 2,100 GPD 4"x40" CPA5-LD-4040 - ESP Water
Free Shipping
Hydranautics
Hydranautics CPA5-LD-4040 RO Membrane Low Fouling Brackish 2,100 GPD 4"x40"
2100 GPD
$319.00
(0)
FilmTec BW30XFRLE - 400/34 RO Membrane Low Energy Brackish 11500 GPD 8"x40" BW30XFRLE-400/34 - ESP Water
Free Shipping
Filmtec
FilmTec BW30XFRLE-400/34 RO Membrane Low Energy Brackish 11500 GPD 8"x40"
(0)
$759.00
High NaCl Rejection
FilmTec BW30XFRLE - 400/34 RO Membrane Low Energy Brackish 11500 GPD 8"x40" BW30XFRLE-400/34 - ESP Water
Free Shipping
Filmtec
FilmTec BW30XFRLE-400/34 RO Membrane Low Energy Brackish 11500 GPD 8"x40"
11500 GPD
$759.00
(0)
Hydranautics CPA7 - LD RO Membrane Low Fouling Brackish 11500 GPD 8"x40" CPA7-LD - ESP Water
Free Shipping
Hydranautics
Hydranautics CPA7-LD RO Membrane Low Fouling Brackish 11500 GPD 8"x40"
(0)
$819.00
Can be used in primary or pretreatment, and are suited for global municipalities and industries.
Hydranautics CPA7 - LD RO Membrane Low Fouling Brackish 11500 GPD 8"x40" CPA7-LD - ESP Water
Free Shipping
Hydranautics
Hydranautics CPA7-LD RO Membrane Low Fouling Brackish 11500 GPD 8"x40"
11500 GPD
$819.00
(0)
Hydranautics ESPA4 - LD RO Membrane Low Energy Brackish 12000 GPD 8" x 40" ESPA4-LD - ESP Water
Free Shipping
Hydranautics
Hydranautics ESPA4-LD RO Membrane Low Energy Brackish 12000 GPD 8" x 40"
(0)
$819.00
Can be used in primary or pretreatment, and are suited for global municipalities and industries.
Hydranautics ESPA4 - LD RO Membrane Low Energy Brackish 12000 GPD 8" x 40" ESPA4-LD - ESP Water
Free Shipping
Hydranautics
Hydranautics ESPA4-LD RO Membrane Low Energy Brackish 12000 GPD 8" x 40"
12000 GPD
$819.00
(0)
Hydranautics SWC4 - LD RO Membrane Seawater 6500 GPD 8" x 40" SWC4-LD - ESP Water
Free Shipping
Hydranautics
Hydranautics SWC4-LD RO Membrane Seawater 6500 GPD 8" x 40"
(0)
$859.00
Can be used in primary or pretreatment, and are suited for global municipalities and industries.
Hydranautics SWC4 - LD RO Membrane Seawater 6500 GPD 8" x 40" SWC4-LD - ESP Water
Free Shipping
Hydranautics
Hydranautics SWC4-LD RO Membrane Seawater 6500 GPD 8" x 40"
6500 GPD
$859.00
(0)
Hydranautics ESPA2 Max RO Membrane Low Energy Brackish 12000 GPD 8"x40" ESPA2-Max - ESP Water
Free Shipping
Hydranautics
Hydranautics ESPA2 Max RO Membrane Low Energy Brackish 12000 GPD 8"x40"
(0)
$809.00
Can be used in primary or pretreatment, and are suited for global municipalities and industries.
Hydranautics ESPA2 Max RO Membrane Low Energy Brackish 12000 GPD 8"x40" ESPA2-Max - ESP Water
Free Shipping
Hydranautics
Hydranautics ESPA2 Max RO Membrane Low Energy Brackish 12000 GPD 8"x40"
12000 GPD
$809.00
(0)
AXEON NF4 - 4021 RO Membrane 950 GPD, 950 PSI, 4 x 21 Inches, 200411 200411 - ESP Water
Free Shipping
AXEON
AXEON NF4-4021 RO Membrane 950 GPD, 70 PSI, 4 x 21 Inches, 200411
(0)
$299.00
Thin Film Membrane (TFM)
AXEON NF4 - 4021 RO Membrane 950 GPD, 950 PSI, 4 x 21 Inches, 200411 200411 - ESP Water
Free Shipping
AXEON
AXEON NF4-4021 RO Membrane 950 GPD, 70 PSI, 4 x 21 Inches, 200411
950 GPD
$299.00
(0)
AXEON HF3 - 4021 RO Membrane 900 GPD 4 x 21 Inches, 200372 200372 - ESP Water
Free Shipping
AXEON
AXEON HF3-4021 RO Membrane 900 GPD, 225 PSI, 4 x 21 Inches, 200372
(0)
$289.00
Thin Film Membrane (TFM)
AXEON HF3 - 4021 RO Membrane 900 GPD 4 x 21 Inches, 200372 200372 - ESP Water
Free Shipping
AXEON
AXEON HF3-4021 RO Membrane 900 GPD, 225 PSI, 4 x 21 Inches, 200372
900 GPD
$289.00
(0)
AXEON NF3 - 4014 RO Membrane 400 GPD, 70 PSI, 4 x 14 - Inches, 200404 200404 - ESP Water
Free Shipping
AXEON
AXEON NF3-4014 RO Membrane 400 GPD, 70 PSI, 4 x 14-Inches, 200404
(0)
$234.00
Thin Film Membrane (TFM)
AXEON NF3 - 4014 RO Membrane 400 GPD, 70 PSI, 4 x 14 - Inches, 200404 200404 - ESP Water
Free Shipping
AXEON
AXEON NF3-4014 RO Membrane 400 GPD, 70 PSI, 4 x 14-Inches, 200404
400 GPD
$234.00
(0)
AXEON SW1 - 4040 RO Membrane, 1800 GPD 211759 - ESP Water
Free Shipping
AXEON
AXEON SW1-4040 RO Membrane, 1800 GPD
(0)
$499.00
Thin Film Membrane (TFM)
AXEON SW1 - 4040 RO Membrane, 1800 GPD 211759 - ESP Water
Free Shipping
AXEON
AXEON SW1-4040 RO Membrane, 1800 GPD
1800 GPD
$499.00
(0)
AXEON replacement reverse osmosis membranes for drinking water RO systems
 
Reverse osmosis water filtration contaminant reduction infographic
 

Focused on What Matters

Team of Trained and
Experienced Specialists
Live US-Based
Support Team
Top Rated
Service
Free Fast Shipping
On Orders $99+