Original Pentax spare part for Pentax and Foras water pumps. Suitable for the pump models:BMVC-5/30 400/690-50 IE3 (QF700035060Z),BMVD-4/30 400/690-50 IE3 (QF700044060Z),BMHC-5/30 400/690-50 IE3 (QF710035060Z),BMHD-4/30 400/690-50 IE3 (QF710044060Z)We sell only Original spare parts from the manufacturer. Do not use analogue parts that could damage your pump.