Glasfloss PTA Series Merv 5-6 Disposable Filters With A Metal Retainer Wall On One Side Of The Filter, Resulting In Exceptional Strength And Durability. This Filter Is Constructed With A Single Piece Of Heavy Duty, One Piece Craft board Frame. The Metal Grid Is Thermally Bonded Internally To The Frame. All Corners Are Closed And Sealed. Designed For Use In All Residential And Commercial Applications. These Filters Are Also Available In 2 Inch Sizes.

Best Used For...

• Step-Up From Fiberglass Filters
• Metal Retainer Wall on One Side
• Mid-Grade Filter Option