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CPA7-LD — equivalent Hi-Tech RO membrane

Looking for a drop-in alternative to the Hydranautics (Nitto) CPA7-LD? HMBW-28-440-FR is the closest Hi-Tech Membranes equivalent — see how the specs line up below. The same element also replaces matching parts from 8 other manufacturers.

SpecCPA7-LDHMBW-28-440-FR
Salt rejection
99.8%
99.7%
Permeate flow
12,000 GPD
12,650 GPD
Test pressure
150 psi
150 psi
Element size
8″ × 40″
8" × 40"

HMBW-28-440-FR also replaces these equivalents

Cross-referenced against 24 other elements across 9 manufacturers. Every entry links to its own spec comparison.

View HMBW-28-440-FR specsView HMBW-34-400 (high recovery / polishing duty) 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) 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.