- New
741-686 is a Bismar brass pipe adapter featuring a 1/2 in. female pipe thread (FPT) on one end and a 3/8 in. male pipe thread (MPT) on the other. It is designed to connect compatible threaded components with different pipe sizes and is part of Bismar’s brass pipe fitting range. Verify the thread specifications and application requirements before installation to ensure compatibility with the existing system.