★ Key Size: 25mm(31/32 inch) in diameter, (This cartridge only work for the same structure cartridge replacement , the key size is the diameter of the body, the pin distance of the basement , the height of the products). It is very important to check the detail size before order, please don't ignore it. ★ Premier finishing process – finishes will resist corrosion and tarnishing through everyday use ★ Replacement ceramic faucet cartridge for single handle kitchen and basin faucet cartridge parts. The same size as A507906N-31 Cartridge N25D. This is the replacement for A507906N. Plastic ceramic cartridge. This also is the replacement for Boston Harbor BOS-7112550, 7112550, Pfister 9740740 Avalon/Treviso 26/529 Series, Kohler Kitchen Faucet GP1093674 ★ CUPC certified cartridge, durable for 1,00,000 times life cycle testAny more problems, please leave us a message or send us a question. We will reply you within 24 hours. ★ Faucet Type: Hot & Cold single handle kitchen and basin faucet. Quality ceramic and plastic material (PPO), high Max Temperature resistance up to 95℃. 25mm Faucet Cartridge Replacement, CUPC Certified, Single Handle Faucet Valve for Kohler GP1093674, Pfister 9740740 Avalon/Treviso 26/529 Series 25mm Cartridge Sub Assembly, N25DW, N25D