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Welch, 1420H-21, NW 16 Acid Neutralization Trap, 2 CFM (57l/min) for ChemStar Vacuum Pumps
The Acid Neutralization Trap contains a large alkaline element cartridge to neutralize hydrous acids before they enter the vacuum pump. The element changes from white to bluish-transparent when spent and can be observed through the transparent trap body.
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