Replacement 1/2" silicone gaskets / washers spare parts for quarter turn ceramic disc cartridges (TWIN PACK/SET OF 2) Replacement 1/2" end silicone gaskets/washers for 1/4 turn ceramic disc cartridges Suitable for most ceramic disc valves - please check dimensions and photos carefully before ordering You will receive a twin set of discs to repair one set of taps Can't find the right size? Contact us for advice - We are available for Technical help and support FAST DESPATCH - Delivery aim from the UK to USA takes 5 - 7 working days