The Quick-Sling adjustable mounting stands are designed to support units up to 400 lbs. Stands are 12 high and include iso washers, iso pads and all necessary mounting hardware. Constructed of 14 ga. square tubular steel with powder coated paint to resist weathering. Each crossbar is slotted and mounting is adjustable to accommodate most brands of mini-split heat pumps. Feet are drilled to receive 1/4-20 hardware to bolt to concrete.