Tap Magician Cartridge compatible with Ultra SVR22 SVR22W Compatible with Hudson Reed Twin Control Shower Valve – A3003V – A3057, – QUEV53 Hudson Reed Triple Control Concealed Shower Valve – A3003 – ART3211 , – BTSVT003 – BTSVT005 – REI3411 – TSVT003 – TSVT005 Do not purchase if you do not know which shower you have - please contact for advice as this is not a universal fitting cartridge Tap Magician Cartridge compatible with Ultra SVR22 SVR22W Cartridge opens Clockwise, Manufacturer: Tap Magician