Original Pentax spare part for Pentax and Foras water pumps. Suitable for the pump models:PLUS-A P 3A-100/5 230-50 (PF540305000ZX),PLUS-A P 3A-100/5 230-50 (PF540305000ZX),PLUS-A P 3A-100/5T 230/400-50 (PF540305040ZX),PLUS-SA P 3SA-100/5 230-50 (PF540305200ZX),PLUS-SA P 3SA-100/5T 230/400-50 (PF540305240ZX)We sell only Original spare parts from the manufacturer. Do not use analogue parts that could damage your pump.