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LG TW 4040 — equivalent Hi-Tech RO membrane

Looking for a drop-in alternative to the LG Chem (NanoH2O) LG TW 4040? BW-34-4040 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.

SpecLG TW 4040BW-34-4040
Salt rejection
99%
99.5%Higher
Permeate flow
2,300 GPD
2,400 GPD
Test pressure
150 psi
150 psi
Element size
4″ × 40″
4" × 40"

BW-34-4040 also replaces these equivalents

Cross-referenced against 29 other elements across 10 manufacturers. Every entry links to its own spec comparison.

View TW-34-4040 specsView BW-34-4040 specsAll LG Chem (NanoH2O) cross-references

LG Chem (NanoH2O), DuPont (FilmTec), Toray, Hydranautics (Nitto), 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.