Hayward Heat Exchanger Assembly, for H300FD Heater | FDXLHXA1300 Spa Depot 18 in mounting length for

18 in mounting length for standard installations

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Custom Molded Products CMP 25552-500-000 Return Fitting Check Valve – 1

Spark Series SFL38

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

Hayward Heat Exchanger Assembly, for H300FD Heater | FDXLHXA1300 Spa Depot 18 in mounting length forWhat 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