ECOMAID Accessories for MaximalPower Round Vacuum Cleaner Attachment Dusting Brush Tool Replacement 1.25" 1-1/4" 32mm Inner diameter is a standard 1.25" (32mm) size, allowing this attachment to be used with almost any household vacuum! Works with most Vacuum. Please check size carefully. Fits: Uprights that have attachment hoses, most canister vacuums and all central vacuum systems! Clean and dust tables and counter tops, air and heating vents, mini and vertical blinds and much more!