Legend Valve’s P-451NL Legend Press swing check valve is ANSI/NSF 61-G compliant and third-party certified by the Water Quality Association. It has press fittings integrated into the cast-brass body of the valve ensuring the integrity of any pressed joining to copper tube. This eliminates the need to use either sweat or male press adapters in a standard sweat or threaded swing check valve. No-lead forged brass is used for the disc, hinge pin and retaining screw. The DZR no-lead brass P-451 is available in 1/2” through 2” sizes.