Nikro 860770 48" Diameter Air Duct Cleaning Inflatable Zone Bag hole saw Breather Box - 100 CFM

Breather Box - 100 CFM - 123 CFM flow capacity6 couplings

Drive Type: Direct

It can give cooling for 4 to 8 hours with just 20lbs of ice

Schaefer 72 Inch BIGDOG can move a massive amount of air at high speeds

Fiberglass:

Nikro 860770 48" Diameter Air Duct Cleaning Inflatable Zone Bag hole saw Breather Box - 100 CFMNikro 860770 48" Diameter Air Duct Cleaning Inflatable Zone Bag Use these zone bags to block sections of ducting to make big jobs more manageable. These bags feature a thick inner bladder covered with nylon. #860257 18" Diameter Zone Bag #860258 26" Diameter Zone Bag #860259 36" Diameter Zone Bag #860770 48" Diameter Zone Bag Product Specifications Replacement Bladders #862018 Replacement Bladder for 18" & 26" #862017 Replacement Bladder for 36" & 48"