- Extended Surface Rigid Box Filters
- Ultrafine high loft microglass media
- Pleated construction with pleat stabilizers (fingers) on both sides
- Galvanized steel cell sides
- Box construction (no header) and header models
- Four efficiencies -
- MERV 14 (90-95%)
- MERV 13 (80-85%)
- MERV 11 (50-55%)
- MERV 10 (40-45%)