The Pellet Vent flex section is used to bend around the smoke shelf in a masonry chimney insert installation. It is not to be used any where else. The heist lock connectors attach the flex to the insert and the to the rigid pellet vent pipe after the flex passes the smoke shelf. 4in. Pellet Vent is used in high altitude installations or installations that exceed 15 ft. in height. High altitude is considered 4500 ft..

　　- Assembled dimension: 5 in. W x 5 in. D x 60 in. H

　　- The twist lock connectors allow the installer to connect the flex to the insert and the to the ridged pellet vent pipe after the smoke shelf

　　- Flex pipe is only to be used in a masonry chimney It is not to be used in a chase or attic or as a wall pass through

　　- Pellet Vent has a Limited Lifetime Warranty

　　- The Pellet Vent flex pipe is used to vent a wood pellet burning insert past the smoke shelf in a masonry chimney