McAlpine Chrome Plated Plug & Handle 1 3/4" (Fits 1 1/2" Waste)

McAlpine 1 1/2 & 2 Bowl Waste Kit Chrome-Plated Brass 1 1/2" - Screwfix

general Double Bowl Sink Waste Kit and Half Bowl Trap Kit - Multi-Fit 1.1/2" From 20cm To 80cm Double Bowl P Trap Kit with Washing Machine Waste Splitter, Sink Waste Kit BS EN Water Seal