The original Pentax spare part is for Pentax and Foras water pumps. Suitable for the pump models:P 9V-300/6 230-50 IE2 (QF510906000Z), P 9V-400/7T 230/400-50 IE3 (QF510907040Z), P 9V-450/8T 230/400-50 IE3 (QF510908040Z) , P 9V-500/9T 230/400-50 IE3 (QF510909040Z) ,P 9V-550/10T 230/400-50 IE3 (QF510910040Z), P 9L-300/6 230-50 IE2 (QF810906000Z), P 9L-400/7T 230/400-50 IE3 (QF810907040Z) ,P 9L-450/8T 230/400-50 IE3 (QF810908040Z), P 9L-500/9T 400/690-50 IE3 (QF810909060Z), P 9L-550/10T 230/400-50 IE3 (QF810910040Z), PLUS P 9-100/2 230-50 (PF500902000ZX), PLUS P 9-100/2T 230/400-50 (PF500902040ZX), PLUS P 9-150/3 230-50 (PF500903000Z)  , PLUS P 9-150/3T 230/400-50 (PF500903040Z), PLUS P 9-200/4 230-50 (PF500904000Z), PLUS P 9-200/4T 230/400-50 (PF500904040Z), PLUS P 9-250/5 230-50 (PF500905000Z) ,PLUS P 9-250/5T 230/400-50 (PF500905040Z)We sell only Original spare parts from the manufacturer. Do not use analogue parts that could damage your pump.