Vibration Isolation square duct "z" support 
100pcs/box 
•Easy to install suspension for air ducts 
•Features rubber sound insulation 
•Easy alignment and height adjustment with threaded rod 
•Holes to fasten to air duct with rivets, self-drilling screws or bolts 
•Zinc plated steel 1/8” thick for 3/8” rod 
•Ideal for hanging furnaces