This falk RSB coupling 1070T hub RSB 246657 - 1-1/4" bore, 3.44 outside dia. FAST SHI is a conduit/piping fitting. It links two sections of conduit or piping, maintaining a secure and properly sealed joint. Key specifications noted on this listing include 1-1/4" Bore. It is commonly in OEM equipment and MRO replacement for conduit or piping runs.
