Legend Valve Y-Pattern Check Valve, T-453NL Series, 1/2 in Nominal, FNPT Connection, 150 psi, 300 psi, 365 deg F, Full Port, Water Media, 2.2 in Inlet to Outlet Length, 1.67 in Top to Inlet Center, Bronze Body, Bronze Disc, Bronze Trim, Lead-Free, Additional Information: 3.5 Cv Flow Coefficient