IDXL2DB1930 Display Board, Replacement for 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/ 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 universal H-Series. Model: H150FD, H200FD, H250FD, H300FD, H350FD, H400FD,150-500 FDN/ Etc. [Effectively 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 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 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.