3721628-0D5A Waterway 5.0 HP SPL 2-Speed Spa Pump 230V 56 Frame. 3" O.D. Fittings New Version Replaced Obsolete Original

Waterway Executive 5.0 HP SPL 2-Speed Spa Pump (56 Frame, 230V, 3" x 3")

Another version replaced the obsolete 3721628-0D5A 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.

Key Specifications

• Horsepower: 5.0 HP SPL
• Speed: 2-Speed
• Voltage: 230V
• Frame Size: 56 Frame
• Plumbing Connections: 3" 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 3721628-0D5A
• Fitment Note: This pump has 3" O.D. intake and 3" O.D. discharge connections. Always measure your existing fittings before ordering.

Frequently Asked Questions (FAQ)

Is the 3721628-0D5A spa pump obsolete?
Yes. The original 3721628-0D5A model is discontinued. This 5.0 HP SPL 2-speed 56 frame pump with 3" O.D. fittings 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 3721628-0D5A.

What are the plumbing connection sizes for this pump?
This pump uses 3" O.D. (outside diameter) fittings for both the intake and the 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.