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The HOMEWERKS WORLDWIDE LLC 511-46-12-12B is a 1/2-inch PVC compression male pipe thread (MPT) adapter designed for cold water plumbing applications. It connects compression-style tubing to male-threaded pipe fittings and includes nuts with rubber gaskets for a secure, leak-resistant seal. Rated at 150 psi at 73 degrees F, this adapter is built for use on galvanized or plastic pipe systems. Licensed plumbers and experienced DIYers typically install this fitting in residential cold water supply lines where a transition between compression and threaded connections is required.
This adapter is suited for cold water service on galvanized or plastic pipe. It is commonly used in residential plumbing installations where a 1/2-inch compression-to-male-thread transition is needed. The included nuts and rubber gaskets simplify the connection process and reduce the need for additional hardware. It is sold in a package of 20 units, making it practical for contractors handling multiple rough-in or repair jobs on a single project.
Designed for use in cold water applications on galvanized or plastic pipe where a 1/2-inch compression-to-male pipe thread connection is required.
Installation is typically performed by a licensed plumber or qualified tradesperson. Shut off the water supply and relieve line pressure before beginning work. Hand-tighten the compression nut first, then snug with a wrench — avoid overtightening PVC fittings, as excessive force can crack the fitting body or distort the rubber gasket. Verify the connection is rated for the intended service pressure before returning the system to service.
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