Zolton Cohen: Keep that cover on your furnace's air filter -

furnace filter slot cover   Dan furnace filter slot

Quality, economical furnace filters from United Filter Wide selection of HVAC, Furnace AC Filters Bag Filters, Rigid Box Filters and HEPA Filters

Usually, there's a plate that covers the air filter slot Image: An HVAC technician changing out an air filter Some HVAC systems don't have filter each month in case heavy use caused your filter to clog up Step 3: Replace the filter by sliding a new, clean filter into the slot

apertura sala slot vlt air filter and the two-piece system allows you to cover a filter slot up to 25 inches which is : 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