For reliable performance over the long term, modern HVAC condensers need to rest on a solid base. Many homeowners install their equipment on a concrete slab. For something less permanent and expensive, a heavy duty equipment pad is your best option. These hard plastic pads are a reliable alternative to concrete, easy to handle, and economically priced. If you don't yet have a platform for condenser placement, make sure to include an appropriately sized equipment pad with your order.