This product is made to be installed with 40mm pipe or fittings. If your pipe or existing fittings measure 43mm then this product is not campatible and you will require 43mm solvent weld fittings This listing is for a Pack of 1 Pipe plug designed to fit inside 32mm (which actually measure 35mm) push fit waste pipe fittings using the seal fitted inside the pushfit fitting (e.g coupling, bend or tee). It is not designed to fit directly into a pipe or solvent weld fitting as it uses the seal inside the fitting push fit socket plug 40mm 40mm waste pipe blanking cap