Fluidmaster White 1.5" Flush Pipe 16" x 14" - Screwfix
Toilet flush pipe seals and pan connector
Fix A Tap on X: "Fix your toilet with one of our FIX-A-LOO repair parts. The range includes flush pipe cones & seals, cistern buttons, pan screws, flush pipe & inlet valve
Cistern Flush Pipe Coupling Rubber Conical Washer Seal