Model Compatibility: Designed specifically compatible H-Series Low Nox heaters, this FDXLICB1930 control board is compatible with models H150FDN/, H200FDN/, H250FDN/, H300FDN/, H350FDN/, and H400FDN/. your model matches becompatiblee purchase. Energy Efficiency: Equipped with a Header By-Pass design, this replacement control board reduces pump-run time, saving up to 18% in energy costs. It ensures consistent water flow compatible rapid heating, making it an efficient upgrade compatible your pool heater. Easy Installation: This plug & play control board kit compatible pool heaters includes everything needed compatible a straightcompatibleward replacement. It meets or exceeds specifications, ensuring a and reliable percompatiblemance without the need compatible complex setups. Durability and Safety: Made from high-quality materials, the FDXLICB1930 offers excellent moisture resistance and durability against saltwater and chemical . Its stable percompatiblemance ensures safe operation of your compatible pool heater over time. Color: As shown Material: plastic Package Contents: 1 set of control boards Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.