IDXL2DB1930 Display Board, Replacement for Hayward Universal H-Series Low Nox Heater Models H350FDP, Swimming Pool Integrated Control Board, Universal Low Nox Induced Draft Heater, IDL2/IDPL2 Models and 200-400 FDN/FDP Models. [Display Board Compatible Models] IDXL2DB1930 Swimming pool heater Integrated control board, for model H350FDP and fits induced draft heater models H250IDL2, H350IDL2, and H400IDL2. Meanwhile, also replace for hayward universal H-Series. Model: H150FD, H200FD, H250FD, H300FD, H350FD, H400FD,150-500 FDN/FDP Etc. [Effectively Speed Up the Heating Speed] Improving heating efficiency and cost savings of up to 18% by reducing pump run time, save costs. [High Quality Material] IDXL2DB1930 display board made of Upgrade material, with excellent salt water and chemical corrosion resistance, with stable performance and reliable use, and longer service life. Equipped with an LED control panel, it monitors heater performance. [Please Note] Please check picture, part number and fitment information before placing order. The IDXL2DB1930 display board replacement is 4-5/8Inch x 3-3/8Inch and comes with a 4-pin communication cable. Color:Black & Green Material:Metal+ABS Package Contents: 1 x Display Board 1 x Key Frame Assembly