Optimize the safety of your air conditioner installation with the Universal Heavy-Duty Air Conditioner Support. The support holds up to 160 lb. and is made of heavy-gauge, epoxy-coated steel. Features: Transfers the weight of the air conditioner from the window sash and sill to the support and window frame for safety Minimizes the chance of damage to the window, window parts or outside wall Supports up to 160 lb. Compatible with 4 - 11 in. thick walls Heavy-gauge, epoxy-coated steel construction for durability Stainless-steel hardware Nylon fixtures and neoprene rubber mounting pads Bubble level sets the proper angle for condensate runoff Indoor installation helps to eliminate the need for exterior work Includes all necessary hardware