Sturdy and stable, DiversiTech®s Heat Pump Riser provides the desired elEVA™ion for condensers, heat pumps, and air handlers. The 1-piece, heavy-duty plastic unit is manufactured in three heights. Butyl mastic on the top and bottom guarantees no slipping and reduced vibration and noise. Available in 1 or 2 piece risers. Four risers can handle up to 2,000 lb uniform load.