Original Pentax spare part for Pentax and Foras water pumps. Suitable for the pump models:FC1000T 400/690-50 (PF670210060Z),FC750T 400/690-50 (PF670275060Z),FTR1000T 400/690-50 (PF680210060Z),FTR400T 230/400-50 (PF680240042Z), FTR750T 400/690-50 (PF680275060Z),FM1000T 400/690-50 (PF650210060Z),FM550-4T 400/690-50 (PF650455060Z),FM750-4T 400/690-50 (PF650475060Z),FV1000T 400/690-50 (PF660210060Z),FV750T 400/690-50 (PF660275060Z),FV750-4T 400/690-50 (PF660475060Z)We sell only Original spare parts from the manufacturer. Do not use analogue parts that could damage your pump.