24x18x12 MERV 14 Magna Series ASHRAE Cell, Metal Single Header24x18x12 MERV 14 Magna Series ASHRAE Cell, Metal Single Header $387.48 SKU: MAGGH2418B3OX Back $387.48 Quantity -+ Add to Cart Details 24x18x12 MERV 14 Magna Series ASHRAE Cell, Metal Single Header DetailsBackDetails24x18x12 MERV 14 Magna Series ASHRAE Cell, Metal Single HeaderSee MoreSee Less