Original Pentax spare part for Pentax and Foras water pumps. Suitable for the pump models:BMHB-5/18,5 400/690-50 IE3 (QF710025060Z),BMVB-5/18,5 400/690-50 IE3 (QF700025060Z),BMVC-3/18,5 400/690-50 IE3 (QF700033060Z),BMVD-3R/18,5 400/690-50 IE3 (QF700043160Z),BMHB-5/18,5 230/400-50 IE3 (QF710025040Z),BMHB-5/18,5 400/690-50 IE3 (QF710025060Z),BMHC-3/18,5 400/690-50 IE3 (QF710033060Z),BMHD-3R/18,5 400/690-50 IE3 (QF710043160Z)We sell only Original spare parts from the manufacturer. Do not use analogue parts that could damage your pump.