The Dimension One Spas C3550-1 Heater Assembly is a genuine OEM replacement designed to restore optimal heating performance to your compatible Dimension One Spa. Featuring Laing low flow technology, this heater delivers 5.5kW of power at 230V through dual elements (2.1kW and 3.4kW), ensuring efficient, reliable hot water for relaxation and hydrotherapy. Ideal for select D1 models requiring a low flow solution, this assembly maintains water temperature with energy efficiency and long-lasting quality.

• ✅ OEM Replacement – Engineered specifically for Dimension One Spas
• 🔌 Low Flow Compatible – For models designed for low flow heating
• 🔥 Dual Element Design – 2.1kW & 3.4kW elements combine for 5.5kW output
• 💧 Laing Technology – Renowned for reliability and consistent heating
• 🔄 Direct-Fit Installation – Simple swap with existing heater, assembly only
• ⚠️ Check Compatibility – Confirm with your spa's model/year or contact support before purchase

• Most Dimension One Spas models requiring a 5.5kW, 230V, low flow heater (please verify against your spa’s specifications)

• Voltage: 230V
• Power: 5.5kW (2.1/3.4kW dual elements)
• Flow: Low Flow configuration
• Type: Laing assembly
• Part #: C3550-1

1. Power off spa at breaker before servicing.
2. Disconnect plumbing and wiring from old heater.
3. Install new C3550-1 assembly, ensuring proper gasket/seal placement.
4. Reconnect plumbing and wiring per your spa manual.
5. Restore power. Test for leaks and heating operation.
6. Consult a licensed spa technician if needed.

• C3550-1, Laing 5.5kW Low Flow Heater Assembly, compatible 230V Dimension One Spa heaters

• Perfect fit and function for D1 models
• Maintains spa safety and longevity
• Manufacturer warranty supported when installed as directed