LSP03/LSP07 Sump Pumps are designed and built for extended service life and increased reliability. The corrosion-resistant, heavy-duty construction includes stainless-steel motor casing, fasteners, and shaft, with a double-labyrinth lip seal to further protect the motor. Available in manual or automatic versions, with several float switch options to increase flexibility for a range of residential applications including: basement draining, water transfer and dewatering.