Original Pentax spare part for Pentax and Foras water pumps. Suitable for the pump models:PLUS P 5-180/6T 230/400-50 (PF500506040Z),PLUS-S P 5S-180/6T 230/400-50 (PF500506240Z),PLUS-S P 5A-150/5 230-50 (PF540505000Z),PLUS-A P 5A-150/5T 230/400-50 (PF540505040Z)We sell only Original spare parts from the manufacturer. Do not use analogue parts that could damage your pump.