Compatible with All Karcher EasyFix Models. Simply place the pads onto the EasyFix floor head and you're ready to clean! Perfect Compatibility: Designed to fit seamlessly with various Karcher steam cleaner models including EasyFix SC2, SC3, SC4, SC5, and multiple part numbers including 1.516-330.0, 1.512-050.0, 1.513-110.0, and many more.