The In-line Spark Box is designed to have a spark arrestor just above the stove.
5" version is the black model seen in the pictures.
4" & 6" versions are silver model seen in last picture. These are a special order item and may take up to 6 weeks to ship.
Prevents almost all ash and sparks from going up a stove pipe and onto wall tent roof.
You can clean your inline spark arrestor daily, in 15 -20 seconds, without having to take down all of your stove pipe to clean the spark arrestor that is on top of your.
Used by the U.S. Forest Service