Waterway Executive 4HP Impeller for 56 Frame
Genuine replacement 4hp impeller 310-4190 for Waterway Executive pump wet ends designed specifically for use with Hot Tubs & Spas. These 4hp impellers will fit any Waterway 48 frame or 56 frame Executive spa pump wet ends but you should fit the same horsepower equivalent. The horsepower rating is usually stamped into the centre of each Waterway impeller so check there to match up your replacement.
Vein Gap Distance – To aid in matching up the correct impeller HP measure the vein gap distance, this is the distance between the front and rear plates of the impeller. Compare with the specifications of this Waterway impeller below.
