£3.40
Silicone Basin Waste Seal Set, Assorted O Ring Gasket Replacements for Up Sink and Bathtub Drains, Fixes Leaks, Fits Over Old Grooves, 35–43.5 mm(43.5 * 28.5mm)
£3.59
Silicone Up Basin Waste Seal Replacement Kit with O For Ring Gasket for Bathtub and Sink Drain, 5-Piece Assorted Size Set (35mm-43.5mm)(35 * 20mm)