The DuraVent DuraTech LDC 20" Finishing Collar is a premium component of the DuraTech LDC all-fuel double-wall chimney system, designed to provide a clean, professional finish where the chimney passes through ceilings or walls. Ideal for use with wood stoves, fireplaces, masonry fireplaces, and vented non-condensing appliances, this finishing collar enhances the appearance of your installation while maintaining proper alignment and system integrity. Built for durability and long-term performance, it is part of a trusted UL 103 Type HT listed chimney system engineered for safety and efficiency.

Featuring a solid-pack design with 1" ceramic insulation between dual walls, the DuraTech LDC system ensures optimal heat control and draft performance. It helps maintain high flue gas temperatures while keeping exterior surfaces cooler for improved safety. Tested and certified to meet U.S. and Canadian standards, this 20-inch finishing collar delivers dependable performance, making it an essential accessory for professional-grade chimney installations requiring reliability, safety, and a polished finish.