The DuraVent DBK-Xx DuraBlack Increaser provides a premium product for use with the DuraBlack chimney system. Use this component to increase from a smaller appliance flue outlet to a larger diameter chimney or stovepipe.

DuraBlack offers an economical, drip free, single-wall stovepipe. Built to DuraVent's high standards, DuraBlack is constructed with die-formed end fittings. Adjustable pipe lengths also eliminate the need for cutting and crimping. Available in 24-gauge lock-seam, 22-guage stainless steel and heavy-duty 22-guage welded seam, DuraBlack offers a durable venting option for the home.

Features

• Perfect for Wood Stove Venting Systems: Ideal for wood-burning stoves, fireplaces, and solid-fuel heating appliances that require a larger diameter chimney connection for proper draft performance.
• Smooth Diameter Transition: Increases from a smaller appliance flue outlet to a larger chimney or stove pipe, helping maintain efficient airflow and consistent exhaust performance.
• Reliable Single-Wall Chimney Connector: Designed for use with the DuraBlack single-wall stovepipe system, providing a dependable, drip-free connection between appliance and chimney.
• High-Quality DuraVent Construction: Manufactured to DuraVent’s exacting standards with precision die-formed end fittings for strength, durability, and a secure fit.
• Compatible with DuraVent Chimney Systems: Works with approved DuraVent venting products, including DuraTech, DuraTech Canada, DuraPlus, and DuraTech Premium chimney systems.
• Easy Professional Installation: Provides a simple, code-compliant solution for adapting stove pipe diameters without compromising chimney system performance.