459 | 3-1/4" x 14" to 8" Round Trans | BROAN-NuTone Used on_SB Condensing Boiler Greenstar 151 Pro

Condensing Boiler Greenstar 151 Pro Combi With Standard Control

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An advanced mandrel design and quick-release mechanism allow for an easy tube release

459 | 3-1/4" x 14" to 8" Round Trans | BROAN-NuTone Used on_SB Condensing Boiler Greenstar 151 ProBROAN NuTone 3 1 4" x 14" to 8" Round Transitional Duct Adapter (SKU: 459) This 3 1 4" x 14" to 8" Round Transitional Duct Adapter allows you to connect different sized ducts in your HVAC system. It is constructed of durable materials for long lasting performance and features a round design for smooth airflow. Its 3 1 4" diameter end connects to smaller ducts, while the 14" diameter end connects to larger ducts. It is suitable for use in both