Clean-Pak Pocket filters
Dual layer microfine synthetic media
Moisture resistant
Wide variety of pocket length and counts
Triple sealed pocket attachment
Interlocking pocket retainer
Sonic welded pocket formation
Five efficiencies - 90-95%, 80-85%, 60-65%, 45-50%, 40-45% 

Venti-Pak Pocket Filters
Ultrafine, high loft, microglass media
Wide variety of pocket lengths and counts
Triple sealed pocket attachment
Interlocking pocket retainers
Double lock stitched pocket formation
Five efficiencies - 90-95%, 80-85%, 60-65%, 45-50%, 40-45%