Little Giant Oil-less fountain pumps:|
Models starting with "PES-" are mag-drive pumps that utilize an epoxy-encapsulated motor and plastic housing.|
A permanent magnet is attached to the impeller. The magnet acts as a rotor would in a conventional motor.
The water being pumped surrounds the rotor. They are seal-less and oil-less.
Models starting with "PE-" are commonly known as "potted pumps", they feature an epoxy-encapsulated motor, plastic housing, and radial lip seal on the motor shaft.
They are oil-less pumps.