The McAlpine S4E Pushfit 90° Knuckle Overflow Bend is a plumbing component used to connect an overflow pipe to a waste system at a 90° angle. The S4E knuckle overflow bend is part of McAlpine's push-fit plumbing range, which allows for easy and quick installation without the need for special tools or adhesives. The "knuckle" design of the bend allows for flexibility and adjustability in the installation, ensuring a perfect fit in any application. The S4E overflow bend is made of high-quality materials and is resistant to corrosion and degradation. It is compatible with a wide range of pipes and fittings and conforms to relevant standards and regulations. If you have any further questions or need additional information, please let me know. ・ Available in 1¼" and 1½" sizes