The Insta-Plumb 1-1/2 in. 90-Degree Coupling allows for a faster and easier install with no nuts, washers, tools or glue needed. The simple push to install, press to release connections of 1-1/2 in. 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. The pipes are removable/reusable with an integrated press release collar and can be re-positioned for perfect alignment. This kit features a stainless steel grip ring that holds the connection tight and an O-ring for a leak-free seal so you can install with confidence. 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.