This durable 5' chimney extension rod has a 3/8" pipe thread. These rod ends screw together to expand to any length to get through your chimney for cleaning. Meant to be used with a brush that has 1/4" threads but you will also need a 1/4" to 3/8" adaptor (sold separately). This rod has a stiff flex, which is meant for medium creosote build-up. Can also be used on chimneys with 30 degree or less.
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.