DuraVent 46DVA-E45 45° Elbow Type_Filter Accessories The Snap Disc turns the

The Snap Disc  turns the blower fan on once the fireplace is warm enough and back off once it is sufficiently cooled

BTU Output: 5

It self-regulates

so it stays active in the water longer and keeps working between treatments

DuraVent 46DVA-E45 45° Elbow Type_Filter Accessories The Snap Disc turns theDuraVent 46DVA E45 45 Elbow Overview Use to offset obstructions as needed. Fully unitized, twist lock construction. Elbow swivel, allowing the lock to remain fully engaged while aligning the desired direction. The angle will remain fixed at 45. What's in the Box 1 x DuraVent 46DVA E45 45 Elbow Specifications Material: Galvanized Steel Diameters: 4" x 6 5 8" Inner Material: Aluminum Brand DuraVent