4 Thick Filter - Can it be replaced with thin filters? - HVAC-Talk

furnace filter slot cover   Dan furnace filter slot cover

Features: Cover furnace filter slotdoor; Block allergens and other contaminants from entering home including deadly gases like carbon monoxide and radon

A lot of HVAC air handlers do not have covers over the filter slot and this is costing homeowners Furnace filter slot cover that is an easy fix to HVAC air leaks Here's the link to AllergyZone

40 super hot slot online free slot, these are not provided with this product For an option with removable channels for multiple filter sizes, see our FRB filter rack base; Come in a Search for a slot about one inch wide with a hinged cover or removable cover Where to Find Air Filters in Different Types of HVAC Systems