Air Systems Ventilation Kit includes CVF-8EXP fan, 6' conductive duct with storage canister, 25' conductive duct, conductive saddle vent, conductive 90 deg elbow and universal mounting bracket. Conductive saddle vent ventilation kit is ideal for hazardous locations. Kit is perfect for work on boilers, utility and telecommunications companies, electrical transformer repair, open trenching, maintenance, tank cleaning, manhole entry and cleaning tanks.