Air Defense Mechanical MERV 8A has tested to have longevity and strong media with an efficient design to its construction. From the pleat consistency, durability, and the comparison to other high capacity MERV 8 filters, the Air Defense Mechanical MERV 8A stands alone as the new standard.

***Actual Size*** 23 3/8" x 23 3/8" x 3 5/8"

MEDIA

100% synthetic, proprietary media resists moisture and damage
Mechanical efficiency – achieves MERV 8A rating before and after a conditioning step
Independently tested and verified for quality control
Extremely low-pressure drop and high dust holding capacity

CONSTRUCTION

Heavy-duty, moisture resistant beverage board frame
A two-piece frame provides rigidity with double-wall thickness around the outer edge
The die-cut pattern provides 50% more contact points between the media pack and frame
Integral die-cut cross members provide strength and rigidity
A water repellent adhesive used to bond the frame with the media pack
Rust-resistant expanded metal support grid made of galvanized steel
100% water repellent, high-strength adhesive coats the entire interior of the frame

Air Defense HD 24x24x4