Air handler filter slot difficult to navigate when replacing filter

Return Air Boxes – 20mm Polypanel return air box with filter slot Install the filter media box between the return air plenum and the air handler box 2 Slide the filter into the slot and place the filter return of the dead slot Furnace Return Air Box with Filter Rack - x Model: FB2128 $ Ships in 2-3 Weeks Add

return of kong megaways slot AirScape extra large return air filter box with grille 5 square feet face area for a low pressure drop Specifications: