3721221-13HZW Waterway 3.0 HP 2-Speed Spa Pump 230V 10.0/3.5A, Waterway Executive Side Discharge, 56 Frame, 3.6" O.D. Intake / 3" O.D. Discharge New Version Replaced Obsolete Original

Waterway Executive 3.0 HP 2-Speed Spa Pump (56 Frame, 230V, 3.6" x 3")

Another version replaced the obsolete 3721221-13HZW hot tub pump. It uses a Waterway Executive wet end and a 56 frame motor, the best current matchup for your spa's plumbing setup.

Ships as the new version: the original 3721221-13HZW pump has been discontinued, so this order ships its current replacement.

Key Specifications

• Horsepower: 3.0 HP
• Speed: 2-Speed
• Voltage: 230V
• Amperage: 10.0 Amps (High Speed) / 3.5 Amps (Low Speed)
• Frame Size: 56 Frame
• Plumbing Connections: 3.6" O.D. Intake / 3" O.D. Discharge (measured across the openings - edge to edge)
• Wet End: Waterway Executive

Compatibility & Cross-Reference

• Current Version Replacement For: Obsolete Waterway model 3721221-13HZW
• Fitment Note: This pump has 3.6" O.D. intake and 3" O.D. discharge connections. Always measure your existing fittings before ordering.

Frequently Asked Questions (FAQ)

Is the 3721221-13HZW spa pump obsolete?
Yes. The original 3721221-13HZW model is discontinued. This 3.0 HP 2-speed 56 frame pump is the current version replacement.

Where is the part number located on my hot tub pump?
It is printed on the specification label on the side of the motor. Look at the line marked MODEL to confirm it matches 3721221-13HZW.

What are the plumbing connection sizes for this pump?
This pump uses a 3.6" O.D. (outside diameter) intake and a 3" O.D. discharge. When measuring your old pump, measure across the openings - edge to edge.

Questions or not sure it fits? Call 858-210-8062 or text photos of your old pump and motor label to 858-215-4460.