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741-222 is a Bismar brass connector, model 126-4-2, designed to connect a 1/4" hose barb to a 1/8" female pipe thread (FPT). This fitting is part of Bismar’s brass adaptor range and is intended for compatible hose and pipe connection applications. Its specific use should be determined according to the requirements of the installation. Verify the original fitting and thread specifications before installation.