This clamp is a means of attaching a 220mm duct system to 38mm (1 ½") or 50mm (2") ladder racks. It is attached to the rack by a plate and two screws, which clamp the rack between the plate and clamp body. Multiple holes provide vertical adjustment in 21mm increments. It also includes a 220mm duct-mounting bracket, (Part No. TC1279-13); which holds the 220mm duct in place.
