Original Pentax spare part for Pentax and Foras water pumps. Suitable for the pump models:SC550T 230/400-50 IE3 (QF390060040Z),SC550T 400/690-50 IE3 (QF390060060Z),KM550T 230/400-50 IE3 (QF030110040Z),KM550T 400/690-50 IE3 (QF030110060Z),SD550/4T 230/400-50 IE3 (QF060110040Z),SD550/4T 400/690-50 IE3 (QF060110060Z)We sell only Original spare parts from the manufacturer. Do not use analogue parts that could damage your pump.