CMP Air Control Top Access Handle [1" S] [Silver Graph Gray] (25093 117 000) coatesheater Union style valves are useful because Union style valves are useful because they can make future maintenance and replacement more manageable It is an excellent option for buyers who want the confidence of using the right shaft size and a stronger seal material instead of settling for a more generic replacement The CMP air control top access handle is designed for compatible control assemblies where the supported user turn handle needs replacement making the control easier to operate and restoring the finished appearance of the assembly