Compatible with Dewalt: DW421 Type 1 Random Orbit Sander DW421 Type 2 Random Orbit Sander DW423 Type 1 15 inch EVS Random Orbit Sander DW423 Type 2 15 inch EVS Random Orbit Sander D26453 Type 1 Random Orbit Sander D26451 Type 1 Random Orbit Sander DW422 Type 1 EVS Random Orbit Palm Sander D26450 Type 1 Random Orbit Sander D26456 Type 1 5" Palm Grip Sander DW26451K (Type 1) 5 Random Orbit Sander DW26453K (Type 1) 5 Random Orbit Sander Porter Cable: 343 Type 1 5" Random Orbit Sander 343VS Type 1 5" Variable Speed Random Orbit Sander 343VS Type 2 5" Variable Speed Random Orbit Sander 390 Type 1 5" Low Profile Random Orbit Sander 382 (Type 1) 5 Palm Grip R.O. Sander Not for 333 and 334 (we also carry that 5 hole pad , please visit our ebay store) Black & Decker: 27708 Type 1 5 Random Orbit Sander With EVS 27707 Type 1 5 Random Orbit Sander 25708 Type 1 5 Variable Speed Orbital Sander