The Apollo Model 161T (61Y Series) 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. The Apollo swing check can be installed in either horizontal or vertical line with upward flow.Renewable Bronze Seat DiscDezincification Resistant100 Percent Factory Tested per MSS100 Percent Cast, Machined and Assembled in the USARRA Compliant