The M&G DuraVent 8DFSW-25KT is a tee kit from the Duraflex Collection. This tee kit is designed for use with different applications such as fireplace inserts, furnaces, boilers, and water heaters. It is also compatible with different fuel types such as wood, oil, coal, gas, and pellet. A flexible liner chimney pipe, top plate, cap, and tee with a cap are included in the kit. This tee kit comes in stainless steel finish for added strength and can resist heat and chemical damage. It features an 8-inch inner diameter and has a length of 25-foot. This tee kit is backed with DuraVent limited lifetime warranty. It is also a UL certified for meeting the standard for safety. DuraVent is known to be the leader in providing innovative solutions for the venting industry. In cooperation with DuraVent, we at PlumbersStock carry high-quality products like this tee kit for a very affordable price.