Wasserrhythm Basin Waste Black Pop up Click Clack Plug Slotted Waste for Bathroom Sink with Overflow UK Standard G1 1/4BSPP : Amazon.co.uk: DIY & Tools
Pop Up Basin Waste Slotted Bathroom Chrome Sink Push Button Click Clack Plug Kit | DIY at B&Q
1 1/4" Sprung Basin Waste | Toolstation
McAlpine Bath Clicker Waste and Overflow 70mm | Toolstation