Marketing InformationThe Apollo® Model 168T (61Y-75x 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. Apollo® swing checks are ideal for steam and liquid service and can reliably be installed in most plumbing and heating systems including building service piping and OEM applications. Apollo® swing checks can be installed in either horizontal or vertical lines with upward flow.