25 foot 12 inch heater sock rube ducting for herman nelsen, frost fighter, flagro diesel and propane construction heaters.
These have steel rings on both ends, pinlock style and open holes making them easy to click together to extend lengths.
These -65 to +375 degree heater ducts tubes offer many advantages over traditional heater ducting.
• custom engineered, coil sewn into fabric on outside of ducting
•increase ribbing to allow for both positive and negative air flow (for sucking and blowing)
• perfect for aeration intake for grain drying.
• less restrictive than other heater ducting.