Replacement Brass ceramic cartridge faucet Stem valve QUARTER TURN 20 teeth x 53mm x 12mm spindle length (PAIR Hot & Cold) Suitable for Replacing Basin/Sink Faucets with 20 teeth on the stem and 53mm overall. **SUPPLIED WITH SOLID BRASS SCREWS** 1/2" Basin size cartridge. We sell hundreds of sizes contact us or visit us direct tapmagician.co.uk 20 tooth stem measures 7.6mm diamater and 12mm length. Please check dimensions before purchasing You will receive a PAIR of valves (one clockwise and one anti-clockwise) to repair one set of taps Can't find the right size? Contact us for advice - We are a available for Technical help and support