CLEAN-PAK POCKET FILTERS Dual layer microfine synthetic media Moisture resistant Available in many pocket lengths and counts Triple sealed pocket attachment Sonic weld pocket formation Five efficiencies- 90-95%,80-85%,60-65%,45-50%,40-45% Email us with a question about this filter.   VENTI-PAK POCKET FILTER Ultrafine high loft microglass media Available in many pocket lengths and counts Triple sealed pocket attachment Available in 90-95%, 80-85%, 60-65%, 45-50%, 40-45% Email us with a question about this filter.   For more information or pricing, please call us at 704.391.7474 or Toll Free at 800.858.3836 or email us.