Replacement impeller for the Watkins Wavemaster 4000 jet pump This impeller screws onto the pump motor's threaded shaft with regular right-hand threads Please verify your pump's model number and vendor code when selecting replacement parts

This after-market impeller is used on the after-market Wavemaster 5000 and 6000 jet pumps This 1 5 HP impeller screws onto the pump motor's threaded shaft with regular right-hand threads