Allegro 9872-50 (Filter Kit for Allegro 9872-40 Air Supply)
ALLEGRO Portable Fume Extractor Filters HEPA Main Filter - EnSafeCo.com
Allegro Industries 9872‐50 Panel Filter Kit, 2 and 5-Worker for Use with Allegro PN 9872, 9872 (2 Each 1st Stage, 1 Each 2nd Stage, 1 Each 3rd Stage), Standard: Amazon.com: Tools & Home Improvement
Allegro 3100-02 Replacement Filter Cartridges (for 3000-01 and 987- WO)
Allegro Industries 9700‐50 Service Kit, Includes Vanes, Filters and Flushing Liquid (A750) (for Use with Allegro PN 9821), Standard: Amazon.com: Tools & Home Improvement