Original Pentax spare part for Pentax and Foras water pumps. Suitable for the pump models:P 18L-550/6T 230/400-50 IE3 (QF810186040Z),P 18L-550/6T 400/690-50 IE3 (QF810186060Z),P 18SL-550/6T 230/400-50 IE3 (QF810186240Z),P 18SL-550/6T 400/690-50 IE3 (QF810186260Z),P 5L-350/11 230-50 IE2 (QF810511000Z),P 5L-350/11T 230/400-50 IE3 (QF810511040Z),P 5SL-350/11 230-50 IE2 (QF810511200Z),P 5SL-350/11T 230/400-50 IE3 (QF810511240Z),P 9L-450/8T 230/400-50 IE3 (QF810908040Z),P 9SL-450/8T 230/400-50 IE3 (QF810908240Z),P 5SLX-350/11T 230/400-50 IE3 (QF820511240Z),P 9SLX-450/8T 230/400-50 IE3 (QF820908240Z)We sell only Original spare parts from the manufacturer. Do not use analogue parts that could damage your pump.