50D50U-843 - All-Spark Intermittent Pilot / Direct Spark Ignition ModuleWhite Rodgers 50D50U 843 All Spark Intermittent Pilot Direct Spark Ignition Module All Spark makes technicians' jobsand liveseasier. Service calls and installations are quicker and more efficient because theyll always be prepared to handle both 24V IP and DSI systems. Currently, most competitors dont offer configuration with DSI modules, so a different module is needed for each application. But with All Spark, youll be able to replace virtually all