4 Pack Vacuum Cleaner HEPA Filters for Cyclonic Series RO3753EA RO3731EA RO3786EA 1.ELIMINATES DOOR & FLOOR GAP: Deco Window Door Seal is specially designed to fill the gap between the door and the floor to reduce infiltration of light, air, dust, rain from the door.<br> 2.SAVES YOUR ELECTRICITY BILLS: Not only it protects the room from exterior elements but it also prevents the heat and cold escaping from the room during winter and summer thereby reducing electric cost associated with frequent heating or cooling.<br> 3.PREMIUM GRADE MANUFACTURING: Designed in the form of a door strip, the offered practical gap sealer is made of aluminium metal frame along with nylon bristles that are completely flexible and do not crack/shrink in any interior/exterior setting.<br> 4.EASY TO INSTALL: Measure the width of your door & mark on the door seal. Make a sharp 90 cut from top to bottom using a hand saw. Mark hole locations & fix the screw over the aluminum plate. Use a plier to securely seal off the edges.<br> 5.UPGRADED DESIGN FOR LONGEVITY: The updated design of this under-door draft blocker is a nice door insulation seal for all-season protection. Besides, its minimalist design looks exquisite and blends with any interior while being functional in use.