The A.O. Smith Two Compartment NEMA C-Face Pool Filter Motor is a hard-working and energy efficient motor designed to meet demands of the pool environment. It has a threaded shaft that allows for convenient and direct mounting. With horsepower ratings ranging from 3/4-1/8"P to 2-1/3HP, the Two-Compartment NEMA C-Face Pool Filter Motor provides long lasting and trustworthy performance. The Two-Compartment Square Flange Pool Motor does not include a Hi/Lo switch but the end cover and switch assembly may be purchased separately for remote operation.