Waterway 2hp - 2.5hp (1.5-1.8kw) executive pump impeller(5hp USA)

Waterway Executive Pump Impeller The hp rating listed is actual horsepower.
Some manufacturers label pumps with BHP (brake Horsepower) In the case of a 2hp-2.5hp pump, they are sometimes labelled 5hp.
If in doubt, read the motor rating label, and email with details

15.5mm vane width x 6 vanes, 115mm diameter. Marked 5hp in suction throat on most older versions but not all.

* Design change in 2014. New impellers are normally black, perform / measure the same but look different on the back, and have a small hex in the centre of the throat.