The DuraFlex SS system is known for its ability to limit flue condensation and provide efficient ventilation. Compliant with the UL1777 standard for fireplaces and masonry chimneys, the DuraFlex SS 6-ft. Mortar Sleeve for 6 inch Chimney Liner is designed to securely fit into the DuraFlex UltraPro 6-in chimney liner pipe. The mortar sleeve is also available in 4", 5", 5.5" and 8", although each is actually 1" larger than its nominal diameter. Installation is simple and convenient when you utilize compatible stainless steel DuraFlex products.
- UltraPro 6-in. Mortar Sleeve
- Designed for Dura flex UltraPro 6-in. chimney liner pipe
- Actual diameter is 1" larger than nominal diameter
- Available in 4", 5", 5.5", 6", and 8"