Considered one of America's most popular sump pumps. This robust family of sump pumps is known for reliability, durability and performance. The preset, integral snap-action float switch is engineered for one million mechanical starts. The heat-dissipating cast iron body with epoxy powder coated finish provides maximum pumping performance under the most extreme conditions. With Zoeller cool run design, the hermetically sealed, oil-filled motor and non-clogging vortex impeller add up to a long-lasting, trouble-free product.