KwiKool's AtticMaster is a great solution for spot cooling people or equipment in high temperature areas such as attics and crawl spaces. The entire unit includes a 30 foot specialized duct. You may find that 30 feet is not quite long enough for the jobs you do.
This is a 30 foot length duct extension kit can be purchased separately and added to the original 30 foot length. It is constructed of the same specialized material and is easily connected. You can connect up to three (3) 30 foot ducts to your Attic Master giving you a full 90 foot length of duct to help keep you technicians cool while working in hot areas.
When connected additional lengths of duct to your unit, your techs will need to adjust the speed from low (used for a single 30 foot length) to high which is used when extensions have been added.
Each additional 30 foot duct length comes in its own storage bag and is constructed with the same materials as the original length of duct included with your AtticMaster unit.