This brush is excellent for cleaning smoke chambers, heat tubes, and pellet stove heat exchangers. It can be bent by hand into any shape you need, over and over again. 2 1/2" tough fiber bristles.
WARNING: Carcinogens: This product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.