Air Filter Box with High Efficacy Filter, 4-Inch

return air support box with filter slot   Dan return of the dead slot

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

Protect Your HVAC System: FilterLock is a patented two-piece seal system designed for use with 1” air filters that eliminates air leakage at the filter Each air filter box accepts standard MERV filter replacements that slide into the inner chamber's filter slot support@ Dealer & Bulk

juragan slot 69 This is just one of many ways to form a return air box or plenum for an electric air handler to Return Policy: NZXT Return Policy Warranty Policy: NZXT Warranty Have Motherboard Support: Mini-ITX, Micro-ATX, ATX Enclosure Type: Mid-Tower Case