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ESPA1-LD — equivalent Hi-Tech RO membrane

Looking for a drop-in alternative to the Hydranautics (Nitto) ESPA1-LD? BW-28-400-LE is the closest Hi-Tech Membranes equivalent — see how the specs line up below. The same element also replaces matching parts from 9 other manufacturers.

SpecESPA1-LDBW-28-400-LE
Salt rejection
99.4%
99.5%Higher
Permeate flow
12,000 GPD
11,500 GPD
Test pressure
100 psi
100 psi
Element size
8″ × 40″
8" × 40"

BW-28-400-LE also replaces these equivalents

Cross-referenced against 31 other elements across 10 manufacturers. Every entry links to its own spec comparison.

View BW-28-400-LE specsView ES-34-8040 specsAll Hydranautics (Nitto) cross-references

Hydranautics (Nitto), DuPont (FilmTec), Toray, LG Chem (NanoH2O), Koch (Separation Solutions), Veolia (formerly SUEZ), Lanxess (LewaBrane), Vontron, CSM (Toray Chemical Korea), Trisep (Microdyn-Nadir) and all model numbers shown are trademarks of their respective owners, used here for compatibility reference only. Hi-Tech Membranes is not affiliated with, endorsed by, or sponsored by any of them.