The Watkins C3473-1 Low-Flow Trombone Heater Assembly (2-00-0020) is a 4.0KW, 220V heater from Watkins Wellness, built in the low-flow trombone design for efficient heat transfer in compatible spa systems.

Specifications:

• OEM part number: 2-00-0020
• Reference number: C3473-1
• Manufacturer: Watkins Wellness
• Power rating: 4.0KW
• Voltage: 220V
• Design: Low-flow, trombone-style heater

Fits/replaces:

• Watkins Wellness spa systems using the C3473-1 low-flow trombone heater
• Direct OEM replacement for part 2-00-0020

Common signs you need this part:

• Spa water is not heating or heating inconsistently
• Heater flow or hi-limit fault codes on the control panel
• Visible corrosion, leaking, or scale buildup on the existing heater element

Returns & installation: Please confirm your spa's heater assembly matches this part number and design before ordering, as trombone-style heaters vary by manufacturer and model. Installation should be performed by a qualified spa technician with power and water disconnected.

FAQ

Q: Is this heater compatible with Caldera Spas?
A: Caldera Spas is a Watkins Wellness brand and some Caldera models use this same C3473-1 style heater; please verify your specific model's part number before ordering.

Q: What voltage does this heater require?
A: This heater assembly is rated for 220V, 4.0KW operation.