Upgrade your furnace ductwork with the Imperial 10 in. D x 8 in. D Galvanized Steel Furnace Reducer and Increaser. Crafted for reliable performance in Type A vent systems, this transitions piece makes it simple to connect 10" ductwork to an 8" run while maintaining a secure, leak-resistant fit.
What makes this reducer/increaser stand out
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Precise transitions: Large end is 10" and crimp on, while the opposite end is 8", allowing straightforward connection between common furnace duct sizes without custom fabrication.
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Durable, corrosion-resistant material: Made from 26-gauge galvanized steel, providing robust performance in hot-air venting environments and resisting rust over time.
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Type A vent compatible: Specifically designed for standard residential furnace venting applications, ensuring a proper seal and compatibility with typical vent components.
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Easy handling and installation: Boxed packaging keeps the fitting protected during shipping and storage, so you can install with confidence when you’re ready to service your system.
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Finish and fit: Silver galvanized finish not only looks professional but also enhances durability in duct networks exposed to varying temperatures and humidity.
Ideal use cases
• Transition from a 10-inch supply or exhaust duct to an 8-inch line in residential furnace installations.
• Replace worn or inconsistent transitions in existing duct runs where a snug 10" to 8" connection is required.
• Quick field adjustments for retrofits or remodels where duct sizing changes are necessary without fabricating custom reducers.
Installation tips and best practices
To ensure optimal performance and longevity:
- Align the 10" crimped end with the corresponding 10" duct, and secure with appropriate clamps or fasteners designed for galvanized steel ducts.
- Attach the 8" end to the downstream duct run, making sure there are no kinks or sharp bends that could impede airflow.
- Inspect joins for any gaps or gaps and seal with approved duct sealant or foil tape rated for high-temperature ductwork.
- Avoid over-tightening which can deform the crimped end; aim for a solid, clean connection that preserves airflow.
- Ensure the overall duct network remains compliant with local codes and manufacturer recommendations for Type A vent systems.
Why choose Imperial for your furnace venting needs
Imperial brings a proven heritage of practical, reliable HVAC fittings designed to simplify installations and reduce service time. This 10" to 8" galvanized steel reducer/increaser delivers a dependable transition without the bulk of custom fabrication, helping you maintain efficient airflow, minimize leaks, and keep your furnace operating at its best.
