Filter Slot Cover an Easy Fix for Air Leak

AllergyZone FilterLock Furnace Filter Slot Seal furnace filter slot Furnace Filter Slot Cover [Easy fix to HVAC Air Leak with One Hour Heating and Air furnace filter slot Furnace filter slot cover that is an easy fix to HVAC air leaks Here's the link to AllergyZone

all slot 789 The FilterLOCK covers and seals the standard 1” furnace filter slots The overlapping two-piece design allows for filter slots measuring up to 25” in width