Pack of five height adjustable duct supports with M8 threaded connection for fast and easy installation of ductwork. Contents: •5 x 305mm Foot with adhered Anti-vibration pad •5 x 28/22mm adjustable Tube with thumb screw and foot adapter Features: • Non penetrative duct support • Quick and easy to install • 305mm Foot with adhered Anti-vibration pad • Height adjustment using thumb screw • Height adjustable between 220 - 400mm • Total height 600mm from floor • Static max. Load 80kg • 8mm stud for duct support rings & clamps