Insta-plumb, 1-1/2", kitchen p trap, push fit technology for under sink tubular drainage, no solvents, glues or nuts & washer, a simple push fit application for traps, drains & couplings, a stainless steel grip ring that holds the connection tight & an o-ring that provides a leak free seal, faster & easier to install than conventional slip nuts & washers or glue, connects to 1-1/2" od plastic tube, not for use with brass tubing, pipes under pressure, or potable water. Upc/iapmo approved.