Portable, table-top, canopy fume hoods are available in two models. Both models are constructed of lightweight chemical resistant fiberglass and come equipped with a work surface which has a recessed work area to contain spillage. A three inch diameter outlet collar is featured on both models for duct connection. Overall dimensions are 24"/61.0 cm W x 24"/61.0 cm H x 15"/38 cm. ID. Special optional filter backpacks are available to absorb a wide variety of organic vapors, odors, gases andmore solvents. Unit requires model 51051 exhaust blower, 50130 quick disconnect, 80047 flexible ducting and 80073 3" vent outlet. All sold separately. less