LEGEND LEGEND GREEN™ In-Line Check Valve, Series: S-455NL, 1/2 in Nominal, C, 250 psi CWP, 200 deg F, Low Lead Compliance: Yes, Spring Loaded Actuator, 2.4 in Inlet to Outlet Length, Cast Bronze Body, Buna-N (NBR) Rubber Seat Disc/Phosphor Bronze Wire Spring Trim, Buna-N® Rubber Seat Disc, 1.22 in H, Import