Little Giant Oil-less fountain pumps:
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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.
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