The BASO Gas Products C161KKD-1C is a 3-trial Direct Spark Ignition control designed for reliable burner start-up in gas-fired furnaces, boilers, and commercial heating units. It provides a 30-second pre-purge and an 8-second trial-for-ignition to ensure safe, clean lighting of the gas burner. https://www.partshnc.com/c161kkd-1c-baso-gas-products-dsi-3try-30secpp-8sectfi