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ESPA Series Membranes

Big Brand Water Filter Cartridges

Hydranautics ESPA High Energy-Saving Polyamide Membranes

ESPA Series High Productivity Energy-Saving Polyamide Membranes The ESPA Product line includes: ESPA1 - The world's leading high productivity, energy-saving polyamide membrane ESPA2 - Combines high productivity, energy savings and less salt passage all in one element ESPA3 - One of the industry's leading brackish water RO elements ESPA4 - Highest productivity & rejection with next-generation performance
Shop All ESPA Series Membranes

Membrane Size (inches) Sq. Feet Test Pressure Flow (GPM) Rejection
ESNA1-LF-LD-4040  4.0 x 40 80 75 1,600 92.00%
ESNA1-LF2-4040  4.0 x 40  85 75 1,870 87.00%
ESNA1-LF2-LD-4040  4.0 x 40  80 75 2,000 86.00%
ESNA1-LF-LD  8.0 x 40  400 75 8,200 89.00%
ESNA1-LF2-LD  8.0 x 40  400 75 10,500 86.00%
ESPA-2514  2.5 x 14  5 150 250 99.40%
ESPA-2521  2.5 x 21  12 150 350 98.00%
ESPA-2540 2.5 x 40 25 150 750 98.00%
ESPA-4014 4.0 x 14 17 150 500 99.40%
ESPA-4021 4.0 x 21 28 150 1,000 99.40%
ESPA-4611  4.6 x 11  31 150 930 99.40%
ESPA1-4040  4.0 x 40  85 150 2,600 99.00%
ESPA1-LD-4040 4.0 x 40 80 150 2,450 99.30%
ESPA2-4040 4.0 x 40 85 150 1,900 99.60%
ESPA2-LD-4040 4.0 x 40 80 150 2,000 99.60%
ESPA3-4040 4.0 x 40 85 150 3,000 98.50%
ESPA4-4040 4.0 x 40 85 100 2,500 99.20%
ESPA4-LD-4040 4.0 x 40 80 100 2,350 99.20%
ESPA1-7  8.0 x 40 400 150 12,000 99.00%
ESPA2-7 8.0 x 40 400 150 9,000 99.60%
ESPA2-LD 8.0 x 40 400 150 10,000 99.60%
ESPA2-XLD 8.0 x 40 365 150 9,125 99.60%
ESPA2 MAX 8.0 x 40 440 150 12,000 99.60%
ESPA3-7 8.0 x 40 400 150 14,000 98.50%
ESPA4-7 8.0 x 40 400 100 12,000 99.20%
ESPA4-LD 8.0 x 40 400 100 12,000 99.20%
ESPA4 MAX 8.0 x 40 440 100 13,200 99.20%
LFC3-LD-4040 4.0 x 40 80 225 2,100 99.70%
LFC3-LD 8.0 x 40 400 225 11,000 99.70%
Products (Total Items: 18)
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Hydranautics ESPA-2514
Sale
Reg Price: $175.99
Sale Price: $159.00
Hydranautics ESPA-2521
Sale
Reg Price: $246.39
Sale Price: $169.99
Hydranautics ESPA-2540
Sale
Reg Price: $369.59
Sale Price: $259.99
Hydranautics ESPA1-4014
Sale
Reg Price: $431.19
Sale Price: $229.99
Hydranautics ESPA-4021
Sale
Reg Price: $492.79
Sale Price: $209.99
Hydranautics ESPA1-4040
Sale
Reg Price: $492.79
Sale Price: $239.99
Hydranautics ESPA1-LD-4040
Sale
Reg Price: $492.79
Sale Price: $269.99
Hydranautics ESPA2-4040
Sale
Reg Price: $492.79
Sale Price: $239.99
Hydranautics ESPA2-LD-4040
Sale
Reg Price: $396.00
Sale Price: $259.99
Hydranautics ESPA3-4040
Sale
Reg Price: $492.79
Sale Price: $269.99
Hydranautics ESPA4-LD-4040
Sale
Reg Price: $492.79
Sale Price: $249.99
Hydranautics ESPA1-7
Sale
Reg Price: $1,231.99
Sale Price: $756.55
Hydranautics ESPA2-7
Sale
Reg Price: $1,355.19
Sale Price: $640.00
Hydranautics ESPA2-MAX
Sale
Reg Price: $1,232.00
Sale Price: $689.00
Hydranautics ESPA3-7
Sale
Reg Price: $1,355.19
Sale Price: $599.99
Hydranautics ESPA4-7
Sale
Reg Price: $1,478.39
Sale Price: $689.00
Hydranautics ESPA4-LD
Sale
Reg Price: $1,133.00
Sale Price: $696.00
Hydranautics ESPA4-MAX
Sale
Reg Price: $1,287.00
Sale Price: $717.00
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