Ceramic Tap Cartridge kitchen quarter turn inserts valve PAIR 1/2" 20 x 52mm
BSP 1/2" (Basin size)x 52mm height. Tap Magician – The Ceramic Disc Valve Experts. Can't find the size you are looking for?. VR05 1/2" x 20 teeth PAIR (one clockwise, one anticlockwise). Mike Conroy.