You can find that by measuring the outside diameter of the inlet and outlet of a pump. Please make sure to measure both inlet and outlet. It is possible for them to be two different sizes.

• A measurement of approximately 2″ 3/8 is for a 1.5″ inlet or outlet.
• A measurement of approximately 3″ is for a 2″ inlet or outlet.
• A measurement of approximately 3″ 5/8 is for a 2.5″ inlet or outlet.

Watch this video to learn how to remove the impeller from my pump. https://youtu.be/P1CYn-1ZJeE

Watch this video to learn how to remove the impeller from my pump. https://youtu.be/wp_Poe-qYys

Always refer to the manufacturer’s wiring diagram found on the motor.