Like an extra pair of hands, this job-site helper holds ductwork in place with clamps and a chain during installation until permanently secured. Temporarily suspending duct or venting from any joist is fast and easy. Double-ended keyhole also allows easy chain adjustment and locking in a horizontal clamping position, required for engineered joists, without the need to tie the chain around the clamp. Formed teeth hold the clamp securely in place on joist.

Malco® Duct Holder with 1 Pair of Clamp and Chain, 20 lb Load, 4 ft Chain L, Steel, Nickel-Plated Clamp and Chain

• Temporarily suspends duct or venting
• Works on any joist
• Formed teeth hold clamp securely in place
• (2) powerful clamps and 4 ft of 125 lb tensile strength linked chain
• Also ideal for installing fiberglass duct, link chain will not puncture foil skin

• Catalog https://assets.unilogcorp.com/267/ITEM/DOC/Malco_50889_Catalog.pdf