Original Pentax spare part for Pentax and Foras water pumps. Suitable for the pump models:P 18V-550/6T 230/400-50 IE3 (QF510186040Z),P 18SV-550/6T 230/400-50 IE3 (QF510186240Z),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)We sell only Original spare parts from the manufacturer. Do not use analogue parts that could damage your pump.