The Apollo Model 169T (61Y-75x Series) Class 300 Swing Check provides a cost effective ''''Made in the USA'''' alternative to globally sourced check valves. These valves are cast, machined, assembled, and tested in South Carolina. Apollo swing checks with PTFE seats are ideal for liquid service and can reliably be installed in most plumbing and heating systems including building service piping and OEM applications. The Apollo swing check may be installed in either a horizontal or vertical lines with upward flow.Renewable Bronze Seat DiscNPT ConnectionDezincification Resistant Bronze ConstructionOptimum Flow CapacityFactory Tested to MSS SP-80100 and Cast, Machined and Assembled in the USAARRA Compliant