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ESPA4 — equivalent Hi-Tech RO membrane

Looking for a drop-in alternative to the Hydranautics (Nitto) ESPA4? HXLP-28-8040 (extra low pressure) 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.

SpecESPA4HXLP-28-8040 (extra low pressure)
Salt rejection
99.4%
99.7%Higher
Permeate flow
13,200 GPD
13,000 GPD
Test pressure
100 psi
100 psi
Element size
8″ × 40″
8" × 40"

HXLP-28-8040 (extra low pressure) also replaces these equivalents

Cross-referenced against 37 other elements across 10 manufacturers. Every entry links to its own spec comparison.

View HXLP-28-8040 (extra low pressure) specsView BW-28-400-LE 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.