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Hydranautics (Nitto) cross-reference

ESPA4-LD equivalent

Compare published specifications and confirm suitability for your application.

Application review required

Same nominal size; review differences in flow, rejection or test conditions.

Cross-references support initial selection. Confirm feed water, operating conditions and system compatibility with Hi-Tech before replacement. Published specifications may use different test conditions.

Salt rejection
Competitor: ESPA4-LD99.4%
Hi-Tech: BW-28-400-LE99.5%
DifferenceHigher
Permeate flow
Competitor: ESPA4-LD13,200 GPD
Hi-Tech: BW-28-400-LE11,500 GPD
DifferenceLower
Test pressure
Competitor: ESPA4-LD6.9 bar (100 psi)
Hi-Tech: BW-28-400-LE6.9 bar (100 psi)
DifferenceSimilar
Element size
Competitor: ESPA4-LD8″ × 40″
Hi-Tech: BW-28-400-LE8" × 40"
DifferenceSame size

Other cross-referenced models

Cross-referenced against 39 other elements across 11 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
Ask about this replacement

Hydranautics (Nitto), DuPont (FilmTec), Toray, LG Chem (NanoH2O), Koch (Separation Solutions), Veolia (formerly SUEZ), Lanxess (LewaBrane), Vontron, CSM (Toray Chemical Korea), Trisep (Microdyn-Nadir), AXEON 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.