Product Description NC Filtration’s Second Stage (Secondary) Ring Panel Filter features no by-pass, self-sealing fail-sale filtration. They are U.L. Class 2 rated and constructed with three (3) distinct layers of Deniers (15/40/6) allowing for high dust holding capacity and low initial pressure drop. Heavy internal wire support provides a sturdy filter ready to tackle your toughest jobs. The filter may be used in a variety of negative air machines and air scrubbers, including Aerospace America Aeroclean Negative Air Machine #9145.
