Hayward Heat Exchanger Assembly, for H300FD Heater | FDXLHXA1300 Spa Depot Spark Series SFL38

Spark Series SFL38

weather-ready design: Built to withstand sun exposure

balanced handle that reduces hand fatigue during extended service calls and daily pool maintenance

Using a genuine OEM extended-length cell cord helps maintain manufacturer performance standards and avoids the risks associated with aftermarket or spliced cable solutions

Their structural assemblies are widely supported by technicians

Hayward Heat Exchanger Assembly, for H300FD Heater | FDXLHXA1300 Spa Depot Spark Series SFL38What This Part Is Used For The Hayward FDXLHXA1300 Heat Exchanger Assembly is designed for H300FD heaters. It transfers heat generated by combustion into pool water circulation. Why This Part Matters Heat exchanger failure can cause internal leaks or inefficient heating cycles. Replacing the assembly restores proper temperature rise and water flow integrity. It protects other heater components from secondary damage. Key Features and Specifications