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Steel Low Profile Expansion Slot Cover Plate - 5 Pack filter slot cover We're All About Sealing Up Ductwork In the video above we explain a very easy simple tip to seal the space around your furnace filter slot filter slot Easy to install Magnetically attaches to ductwork to cover furnace filter slot door Two-piece design works with any 1-inch furnace filter up to 25 inches long

online slot casino deutschland : FilterLock seals one inch furnace and AC filter slots to improve indoor air quality and reduce utility bills Cover for furnace filter Cover for filter slot