1-1/2 x 1/2 Reducing Coupling with Stop Copper x CopperThe 1 1 2 x 1 2 Reducing Coupling with Stop, Copper x Copper is a high quality fitting used to connect two copper pipes of different sizes. This coupling features a built in stop to prevent over insertion, ensuring a secure and leak proof connection in plumbing and other piping systems. Specifications Details TYPE Reducing Coupling with Stop Copper x Copper DESIGN Stop Feature: The coupling includes a stop that prevents the pipes from being pushed too