This pump is no longer available. This has been replaced by X320465.

X320520 - Master Spa Pump - 4.5hp 2spd 240V 48 Frame Waterway Value Pump

This is a Genuine OEM Direct Replacement Master Spa Part

Pump label is Marked: 3421021-0A8QMR

Measurements:
Front Intake:
Outside Diameter: 3.125 inches (7.9375 cm)
Inside Diameter: 2.50 inches (6.35 cm)
Top Discharge:
Outside Diameter: 2.875 inches (7.3025 cm)
Inside Diameter: 2.25 inches (5.715 cm)