Original Pentax spare part for Pentax and Foras water pumps. Suitable for the pump models:FV1000T 230/400-50 (PF660210040Z),FM1000T 230/400-50 (PF650210040Z),FM1000T 400/690-50 (PF650210060Z),FM1000T 3x400-50 (PF650210063Z),FV1000T 230/400-50 (PF660210040Z),FV1000T 400/690-50 (PF660210060Z),FV1000T 3x400-50 (PF660210063Z),FV750T 230/400-50 (PF660275040Z),FV750T 400/690-50 (PF660275060Z),FV750T 3x400-50 (PF660275063Z)We sell only Original spare parts from the manufacturer. Do not use analogue parts that could damage your pump.