Purolator Bag Filters
The Purolator Bag Filters are available from Columbia Filters. Bag filters vary from the revolutionary and patented Nano-Pak synthetic media to the Defiant and SERVA-Pak Bag Filters available in a variety of pocket lengths, media forms, and efficiencies to meet a wide range of commercial and industrial applications in the NY/NJ metropolitan area.
Additional Information

PUROLATOR NANO-PAK® BAG FILTER
- Revolutionary, patented NanoWave® synthetic media
- High mechanical filtration performance over the life of the filter
- High loft media optimized for the highest dust holding capacity
- Low pressure drop
- Low energy costs
- Resistant to humidity and moisture
- Two efficiencies– MERV 16, MERV 15

PUROLATOR DEFIANT® BAG FILTER
- Exclusive, patented synthetic media with T-Flo® technology
- Holds more dust with a lower pressure drop than Serva-Pak S
- Lower resistance than Serva-Pak S
- Resistant to humidity and moisture
- Two efficiencies – MERV 15, MERV 14

PUROLATOR SERVA-Pak™ S BAG FILTER
- High efficiency, meltblown, synthetic media
- Resistant to humidity and moisture
- Four efficiencies – MERV 15, MERV 14, MERV 12, MERV 11

PUROLATOR SERVA-Pak™ FILTER BAG
- Ultrafine, high loft, microglass media
- Wide variety of pocket lengths and counts
- Fail safe mechanically staked pocket attachment
- Double lock stitched pocket formation
- Four efficiencies – MERV 15, MERV 13, MERV 12, MERV 11

PUROLATOR Hi-E® PLEATED COLLAPSIBLE CARTRIDGE
• Deep pleated media design
• Collapsible for compact shipping and storage
• Three depths – 8″, 12″, 24″
• Four efficiencies – 25-30%, 60-65%, 80-85%, 90-95%