Your old washer once removed could have visible ribs imprinted into the surface of the rubber. This is perfectly normal as the washer forms to the inside shape of the inlet valve body once compressed in and used.
Toilet Spares in stock, Armitage Shanks/Ideal Standard, Derwent Macdee, Fluidmaster, Geberit, Grohe, Roca, Siamp, Thomas Dudley, Torbeck, Wirquin and Wisa Spinx
All Toilet Spares will be posted same day if ordered before 3pm
Kerox Tap Cartridges
Popular With Blanco Taps
Gear Tap Cartridges