40Mm White Waste Knuckle Elbow It requires no tightening. uPVS material White color Easy to install Easi Plumb 40mm Waste Pipe Knuckle Elbow - White | EP40KW1 An elbow is installed between two lengths of pipe (or tubing) to allow a change of direction. It is primarily used to connect hoses to valves, water pumps and deck drains. This Easi Plumb white knuckle elbow Installs easily where access is limited. Fits most standard size waste pipe (excluding universal push-fit waste). A lightweight yet strong and cost-effective option. Apply solvent cement evenly to both surfaces of joint, insert pipe fully into the socket depth and remove surplus cement with a cloth. Allow five minutes to set before handling and twelve hours before testing the system. It is recommended that externally installed waste systems are protected against prolonged exposure to sunlight with exterior gloss t. Features Installs Easily where Access is Limited Fits most standard size waste pipe (excluding universal push-fit waste). Primarily used to connect hoses to valves, water pumps and deck drains.