Northland Filter International
Air Filtration Products

Dollinger Type Replacement Filters

Quality 2 nd Stage Replacement Filters
Note: Trade names used for cross-reference only

Unique “Glide-Bar” Locking System or “Bracket – Locking” System

Maximum Efficiency


Northland NORDOL Filters are designed to replace Dollinger 2nd Stage filters in air intake housings or compressed air systems. The media is spaced with aluminum separators for maximum life, with minimum resistance, in an 18ga. Galvanized frame. The frame has a special universal mounting bracket. The filters have face-guards on both the air entering and leaving sides. There is a pull-strap on the air leaving side.

Northland NORDOL Filters are available in two (2) efficiencies;

  • 95% per ASHRAE Standard 52.1-92 and
  • 97% on 0.3m particles per Mil. - Standard 282
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