MERV 11 SAVE $10.00 Use Promo Code 2010. Our MQP and Pro-Pleat MERV 11 filters are made of electrostatically charged synthetic media that is bonded to a rust inhibitor coated expanded metal.The entire inner surface of he 24 point beverage board frame is coated with adhesive to encapsulate the pleated media pack to prevent air by-pass and provide rigidity.
These filters are great for people with allergies or a need for greater dust control.