Global Industrial 2-1/2" Compressed Gas Gauge, 400 PSI, 1/4" NPT LM, Polished Brass

This compressed gas gauge features a bourdon tube with low copper content for pressure ranges 800 psi and below, making it safe for use with acetylene. lower mount connection. wetted parts are made from a brass copper alloy. polished brass case provides long-lasting durability. removable twist-off polycarbonate window. white aluminum dial. ambient operating temperature range is -40 to 140°f. compatible with us gauge p-590k and p-600, and ashcroft 1495a. cleaned to asme b40.100 level iv. ul approved.