Replacement Brass Ceramic Disc Tap Cartridge – Pair of 1/2" BSP Gland Cartridges with 20 Spline Teeth, 49mm Height, 18mm Spline Length, and 7.6mm Diameter – for Quarter Turn Taps

Flomasta 1/2" BSP Full Turn Brass Threaded Tap Glands Pack - Screwfix

2 Pcs Replacement Brass Ceramic Disc Tap Valve, Tap Cartridge Replacement Insert Gland, Quarter Turn, Universal Fit for Hot & Cold Water, BSP 1/2" Thread 20 Teeth for UK Kitchen Bathroom Basin Taps