Find your parts diagram
Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
Still not sure? Call (818) 818-6559 and we'll find it for you.
FDXLHXA1400 | Hayward Heat Exchanger For H400FD Heaters
Fits these models
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CA P65 Warning: Cancer and reproductive harm. www.p65warnings.ca.gov
OEM Hayward FDXLHXA1400 Heat Exchanger Assembly is an essential heating element tailored for H400FD Low NOx pool heaters, responsible for transferring combustion heat to the water flow with maximum efficiency. Engineered for a precise fit, this OEM unit restores factory-level performance and energy efficiency. It is built from high-strength materials to handle the harsh realities of poolside environments, including pressure changes, high heat, and corrosive water conditions. Ideal for routine servicing or system upgrades, this heat exchanger enhances heater performance and extends equipment life.
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Engineered for Universal H400FD Models: OEM heat exchanger maintains system compatibility and restores original heat transfer efficiency
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Delivers Optimal Thermal Conversion: Ensures consistent temperature performance and energy savings by maximizing heat exchange
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Resistant to Corrosion and Pool Wear: Made from premium materials to resist scale buildup and chemical damage over extended use
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Essential for Repairs and Maintenance: Critical component for bringing older or underperforming heaters back to optimal condition
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Improves System Output and Durability: Helps protect internal components and reduce energy consumption with reliable heating performance
- Hayward Universal H-Series Low NOX Pool Heater Model H400FD