Everbilt 3 in. to 4 in. Adjustable Worm Clamps

Adjustable 3 in. - 4 in. Worm Drive Clamps to securely attach and seal duct, pipe or hose. Worm gear hose clamps consist of a slotted band with a screw housing on one end that rotates a worm connected to a toothed wheel to adjust to the size needed. Chrome plated all metal construction. Classic "hose clamp" design is adjustable with Phillips head screwdriver for secure fit.