The Insta-Plumb double bowl center outlet waste allows for a faster and easier install with no tools or glue needed. The simple push fit connections featured on Insta-Plumb products connect quickly to 1-1/2 in. O.D. size plastic drain pipes and are great for hard-to-reach or confined areas under a sink. Featuring a stainless steel grip ring that holds the connection tight and an O-ring that provides a leak free seal, you can install with confidence. Connections can easily be removed and/or adjusted using the release tool, which also allows the fittings to be reused. Combine this item with other Insta-Plumb products to complete your under sink drainage project quickly, easily, and reliably. It is not for use with brass tubing, pipes under pressure, or potable water.