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Vontron cross-reference

ULP21-4021 equivalent

Compare published specifications and confirm suitability for your application.

Comparable specifications

Same nominal size; flow and rejection within the comparison band.

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: ULP21-402199%
Hi-Tech: TW-34-402199.5%
DifferenceHigher
Permeate flow
Competitor: ULP21-4021525 GPD
Hi-Tech: TW-34-4021525 GPD
DifferenceSimilar
Test pressure
Competitor: ULP21-40216.9 bar (100 psi)
Hi-Tech: TW-34-40216.9 bar (100 psi)
DifferenceSimilar
Element size
Competitor: ULP21-40214″ × 21″
Hi-Tech: TW-34-40214" × 21"
DifferenceSame size

Other cross-referenced models

Cross-referenced against 6 other elements across 4 manufacturers. Every entry links to its own spec comparison.

View TW-34-4021 specsView BW-34-4021 specsAll Vontron cross-references
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Vontron, DuPont (FilmTec), Koch (Separation Solutions), 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.