The original Pentax spare part is for Pentax and Foras water pumps. Suitable for the pump models: KB400 230-50 IE2 (QF040210000Z), KB400T 230/400-50 IE3 (QF040210040Z) ,KB400T 400/690-50 IE3 (QF040210060Z ),KB400/1 230-50 IE2 (QF040210100 Z), KB400/1T 230/400-50 IE3 (QF04021014 0Z), KB400/1T 400/690-50 IE3 (QF040210160Z), KB550 230-50 IE2 (QF040220000Z), KB550T 230/400-50 IE3 (QF040220040Z),K B550T 400/690-50 IE3 (QF040220060Z), KB550/1 230-50 IE2 (QF040220100Z), KB550/1T 230/400-50 IE3 (QF040220140Z) ,KB550/1T 400/690-50 IE3 (QF040220160Z ),KB751RT 230/400-50 IE3 (QF040230040 Z),KB751RT 400/690-50 IE3 (QF04023006 0Z),KB751R/1T 230/400-50 IE (QF0402301 40Z),KB751R/1T 400/690-50 IE (QF040230 160Z),KB900T 400/690-50 IE3 (QF04024 0060Z),KB900/1T 230/400-50 IE (QF040240140Z), KB900/1T 400/690-50 IE3 (QF040240160Z)We sell only Original spare parts from the manufacturer. Do not use analogue parts that could damage your pump.