They join plain-end pipe with different outside diameters that fall within the range that the coupling will accommodate and reduce the need to keep a large inventory of coupling sizes.
The Jones Stephens Bronze Coated Brass Compression Coupling is for 2 in. CTS connections. You can depend on this coupling to make a long-lasting connection of 2 water pipes. It features EPDM gaskets and lead free brass construction.
Water service fittings coupling ring compression x mip coupling no lead size=2 Bronze body and compression nut, stainless steel gripper ring. Bronze body and compression nut, stainless steel gripper ring.