Upgrade your plumbing system with the FloPlast 40mm Rubber Boss Adaptor, a top-quality, flexible fitting designed for easy installation and long-lasting reliability. Perfectly suited for sewage applications, this adaptable piece is crafted from durable rubber with a matt finish, ensuring a secure and watertight seal. The adaptor features a round shape and a diameter to take 50mm ID pipe, both internally and externally, making it a versatile component for various plumbing configurations. One per pack, two available. Thank you for looking!