- Compatible with SF20/25/30/35/42，SF20F/25F/30F/35F/42F USE 520832 WIRE KIT/NT24/30/34SP，NT40 USE 520839 WIRE KIT NT12/16/20S，NT12/16/20SE USE 520840 WIRE KIT/DD17DSI WITH DATE CODES BELOW 9124 USE 520612/DD17DSIWITH DATE CODES ABOVE 9124 USE 520741
- Upgraded 520820 RV Furnace Lgnition Module Circuit Complies with OEM standards，The circuit board is made of high-quality materials The electronic waterproof coating has corrosion resistance and waterproof properties, manufactured by an ISO-certified manufacturer, has passed the quality inspection of UL, CE and RoHS，This is the perfect choice for replacing the Furnaces circuit board
- When your Furnaces DC Lgnition Circuit Board cannot work properly, some circuits cannot work properly, circuit boards are burned out or corroded by chemicals, it is your irreplaceable choice，Save a lot of labor and costs，Cost-effective solution
- Easy and convenient installation，Replace the original wires from the old circuit board，No need for professionals，taking just minutes to perform routine maintenance
