This stove pipe kit is designed to work with stoves that have a 3" air intake system . IT WILL NOT WORK ON 2" SYSTEMS. The kit includes 10 feet of aluminum flexible tubing when fully stretched out. It includes mounting plates for inside and outside the home plus a moisture protector and screen. 2 locking bands are also included to allow for a secure and tight system. This kit will work on many stove brands including Harman and Enviro. A fresh air intake will allow a closer install of windows according to many manufacturers. Please check your owners manual for details.