There compact size and corrosion resistant stainless steel construction make them ideal for cellar drainage, emptying tanks and pools and even powering garden fountains. To ensure long life, the motor has thermal overload protection and a triple seal system to prevent water entering the motor. The stainless steel rotating shaft is also protected by a double labyrinth, V-Ring and impeller counter blade, which prevents solids and fibrous material damaging the shaft seals.