Cartridge Heater element for Auto-Start pellet units (Auto-Start units have manufacture date of 2004 or later). Comes with locking collar.
This is the element that fits inside the Auto-Igniter element tube...this element fits the bolt-on tube (stoves manufactured before August 2004) as well as the built-in cast tube (stoves manufacutured after August 1, 2004)

300W, 120V
Measurements: 24½" Overall, 5" Cartridge