Original Pentax spare part for Pentax and Foras water pumps. Suitable for the pump models:PLUS P 5-80/3 230-50 (PF500503000ZX),PLUS P 5-80/3T 230/400-50 (PF500503040ZX),PLUS-S P 5S-80/3 230-50 (PF500503200ZX),PLUS-S P 5S-80/3T 230/400-50 (PF500503240ZX)We sell only Original spare parts from the manufacturer. Do not use analogue parts that could damage your pump.