This Kit comes with a 17.7” x 98” roll of high quality white polyester filter screen material and Velcro strips. Simply cut and cover your return air intake register, grille, air conditioner and furnace heat vents. This complete set will provide enough installation tape and replacement filters to clean home central heating, air conditioning and air duct. Breathe easy knowing the air in your home is fresher and cleaner, keep your home smelling fresh and odor-free. Compatible with all size air vents, registers, and grilles. Covers all types of floor, wall, ceiling, heaters, AC and HVAC vents. You can also install the filters behind the duct grill by cutting to sizes.