Compatibility: For Jandy's LXi 250, LXi 300, LXi 400 and other models of spa heaters, it is perfectly compatible with these systems, effectively improving the performance and service life of the entire heating system.
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Replaces part number:FDXLBKP1930. Fits models:This is a keypad for H-Series Low NOx and Pool and Spa/Hot Tub Heaters,H150FD, H200FD/H250FD, H300FD/H350FD, H400FD.
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FDXLBKP1930 Bezel. FDXLBKP1931 Bezel. You will need to re-use your existing Plastic Bezel. Basically, if your HAYWARD heater has a "FD" in the part number. This kit only fits the following Hayward Bezels of the shape shown in picture 2.
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– This all-in-one kit is compatible with Pentair MasterTemp & Max-E-Therm pool heaters. Complete Pool Heater Repair Kit. Ensures safe and efficient operation of your pool or spa heater, preventing overheating and system failures.
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Designs for ease of installation, the thermal cut off fuses can be replaced without needing professional help or tool. Automatically disconnects the circuit at excessive temperatures for effective overheating protections, ensuring heater safety.
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You are looking at a brand new, hot surface igniter for Jandy, Teledyne/Laars LD or LLD gas pool heater. This is a OEM factory replacement, part # R0317200. This part is brand new but selling as from open box. These are no longer made by the manufacturer, so unfortunately, there will be no warranty. These are old stock. I have been in the business well over 25 years. Just clearing out some older inventory that we used to use more of. Our loss is your gain. Please let me know if you have any questions. Thank you for looking. 
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For start-up, open the valves gradually to increase flow and pressure in the unit. Then let cold water into the system, followed by hot water. Be sure to check the connections for leaks. This model works with pools of up to 6,600 US gallons with 85kBtu/hr at 140F temperature difference between inlet water and heated water.
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