?Compatibility? Compatible With Kirby Avalir, Avalir 2, Sentria, Sentria 2, Heritage, Heritage 2 Diamond Edition, Generation G3 G4 G5 G6 G7 Ultimate G Vacuum Series, Replace Part 301291. | | ?Good Quality?301291 Vacuum Filters Replacement For Kirby Vacuum Are Made For High-Strength Materials, Perfect Fits Your Vacuums Cleaner, It Is Recommended To Replace Every 2-3 Months To Insure Vacuum Work Great. | | ?Easy To Install?It Is Simply Remove The Broken Belt From Your Vacuum Head And Replace This New One In The Original Position, Reactivate Your Vacuum Cleaner For Kirby! | | ?What You Get? 7* Replacement For Kirby 301291 Belt, You Can Quickly Replace It And Get Your Machine Working Again When The Belts Break?If You Have Any Questions Please