Clockwise (Blue) and Anti-clockwise (Red) to turn the tap on. Material: Brass, Ceramic. Thread size: G1/2 (1/2" 20.5mm). It may have little color difference due to different monitor. Rubber O ring at the bottom, with threaded collar.
Replacement Tap Cartridge Valve Ceramic Disc Gland Quarter Turn Flow Long Tall Stem Insert 20 teeth 1/2 Inner Faucet Valve - AliExpress
Valve Tap Replacement Ceramic Disc
Replacement Tap Valves Replacement Brass Ceramic Stem Disc Cartridge Faucet Valve Quarter Turn 1/2 for Bathroom Kitchen Tap (Hot or Cold)
Faucet Valves, Brass Ceramic Stem Disc Cartridge Replacement Quarter Turn 1/2 for Bathroom Kitchen Tap (1 Pair Hot & Cold), Cartridges - Canada
G1/2 20 spline ceramic cartridges. Premium Quality with metal reinforced silicone gaskets and the hardest ceramic available Specifications: Material
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ZILONG Replacement Brass Ceramic Stem Disc Cartridge Faucet Valve Quarter Turn 1/2 for Bathroom Kitchen Tap (1 Pair Hot & Cold) : : Home Improvement