Its made to hide all plumbing fittings inside the wall. This kit prevents smells from your sink going back into your washing machine or dishwasher. Suitable for both 1 1/4 and 1 1/2 inch sink waste pipes. Not suitable for gluing, only for compression or pushfit fittings (if size matches). - Made from plastic; - Chrome colour; - 40-50mm outlet pipe diameter; - Suitable for both 1 1/4 and 1 1/2 inch sink waste pipes; - Very easy to fit; - 90deg Angle fitting;