IDXL2DB1930 Display Board, Replacement for Hayward Universal H-Series Low Nox Induced Draft Heater H400FDN HD150FDN, Replaces IDXL2DB1930 Item Description Fitment: Replacement for Hayward Universal H-Series Low Nox Heater Models ending in FDN and FDP, Replacement for Hayward Universal H-Series Low Nox Induced Draft Heater Models ending in IDL2 and IDPL2 Replace Part Number: IDXL2DB1930 Endurance Property: Made of high-temperature-resistant materials, the display board is able to withstand the high temperatures of the heater's operating environment to ensure long-term stable operation Intuitive Interface: The display board is equipped with a clear and easy-to-read interface that allows you to conveniently monitor and adjust heater settings, enhancing your experience with simple and intuitive operation Quick Installation: Designed with user-friendliness in mind, the installation process is simple and usually requires no specialized tools, making it suitable for DIY users, saving time and energy ? See more product details Fitment: Replacement for Hayward Universal H-Series Low Nox Heater Models ending in FDN and FDP Replacement for Hayward Universal H-Series Low Nox Induced Draft Heater Models ending in IDL2 and IDPL2 Replace Part Number: IDXL2DB1930 Feature: Easy to plug the membrane pad into the connection that accepts the ribbon cabl Good contact, not easy to disconnect Comes with a 4-pin communication cable Easily unplug by pushing the middle button on the plug Package Includes: 1* Display Board Note: Please confirm whether your model is suitable before purchasing, if you are not sure, please consult us Payment We accept payment only through the Payment system. Shipping Most products are usually shipped within 1-2 business days from the date of being ordered. We do ship worldwide via the International Shipping Program. For an international shipment quote, please add add item to cart and attempt checkout. will supply the international shipping price. Return We do not accept returns except in certain, unlikely circumstances.