Original Pentax spare part for Pentax and Foras water pumps. Suitable for the pump models:SD450/3 230-50 IE2 (QF060160000Z),SD450/3T 230/400-50 IE (QF060160040Z),SD550/4T 230/400-50 IE3 (QF060110040Z),SD550/4T 400/690-50 IE3 (QF060110060Z),SD450/4 230-50 IE2 (QF060150000Z),SD450/4T 230/400-50 IE (QF060150040Z),SD450/4T 400/690-50 IE3 (QF060150060Z)We sell only Original spare parts from the manufacturer. Do not use analogue parts that could damage your pump.