The McAlpine WC-EXTB is an adjustable length straight extension piece designed for use with rigid WC connectors in plumbing systems. It is commonly used to extend the length of a rigid WC connector to ensure a secure and watertight connection between the toilet bowl and the soil pipe. The extension piece is made from high-quality materials and is designed to be durable and long-lasting. It features an adjustable length that can be set to fit a range of different installation requirements. The extension piece is easy to install and comes with all the necessary fittings and fixtures. When installing the McAlpine WC-EXTB extension piece, it is important to follow the manufacturer's instructions carefully to ensure a proper fit and a watertight seal. This may involve cutting the extension piece to the required length, using solvent weld adhesive to join the components together, and securing the connection with suitable fixings. Overall, the McAlpine WC-EXTB extension piece is a useful component for plumbing systems that require a flexible and adjustable connection between the toilet bowl and the soil pipe. Its high-quality construction and easy installation make it a popular choice for both professional plumbers and DIY enthusiasts alike. Available for 3.5"/90mm and 4"/110mm PVC-U and cast iron soil pipe diameters (internal) Suits all McAlpine Rigid and MACFIT WC Connectors. with 4"/110mm outlets Adjustable Length Manufactured in Polypropylene McAlpine WC-EXTB Adjustable Length Straight Extension Piece for Rigid WC Connectors in White