![4" Adjustable Duct Elbow 90 Degree HVAC - 30 Gauge Galvanized Sheet Metal Duct Connector, for Flexible Round Tube air Ventilation & Vent Pipe ductwork Collar Piping ducting Fitting - Ducting Components - Amazon.com 4" Adjustable Duct Elbow 90 Degree HVAC - 30 Gauge Galvanized Sheet Metal Duct Connector, for Flexible Round Tube air Ventilation & Vent Pipe ductwork Collar Piping ducting Fitting - Ducting Components - Amazon.com](https://m.media-amazon.com/images/I/51e9GVKaRrL.jpg)
4" Adjustable Duct Elbow 90 Degree HVAC - 30 Gauge Galvanized Sheet Metal Duct Connector, for Flexible Round Tube air Ventilation & Vent Pipe ductwork Collar Piping ducting Fitting - Ducting Components - Amazon.com
![NIBCO - Drain, Waste & Vent 90 deg; Vent Elbow: 3″ Fitting, Hub x Hub, Acrylonitrile Butadiene Styrene - 63271985 - MSC Industrial Supply NIBCO - Drain, Waste & Vent 90 deg; Vent Elbow: 3″ Fitting, Hub x Hub, Acrylonitrile Butadiene Styrene - 63271985 - MSC Industrial Supply](https://cdn.mscdirect.com/global/images/ProductImages/6327195-11.jpg)
NIBCO - Drain, Waste & Vent 90 deg; Vent Elbow: 3″ Fitting, Hub x Hub, Acrylonitrile Butadiene Styrene - 63271985 - MSC Industrial Supply
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