Spiral Duct Clamp 22" 

•Secure spiral ducts up to 24” with 3/8” threaded rod 
•Two piece design with 2 lock bolts that allow adjustment to accommodate varying pipe sizes
•Rubber vibration control lining reduces noise and resists corrosion
•The special design of the rubber lining and clamp effectively prevents the lining from slipping out
•Mount 360° vertically or horizontally
•Load capacity: 4” to 14” - 112 lbs. 16” to 24” - 270 lbs.
•Perfect for use with hot water heaters and expansion tanks