Original Pentax spare part for Pentax and Foras water pumps. Suitable for the pump models: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.