AC Infinity 3-Way Duct Splitter, 4 x 4 x 4” Exhaust Pipe Splitter Y Connector, for Indoor Growing Tents Dryer Vent Hoses

AC Infinity 3-Way Duct Splitter, 4 x 4 x 4” Exhaust Pipe Splitter Y Connector, for Indoor Growing Tents Dryer Vent Hoses

AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust

AC Infinity 4" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4” Ducting in Range Hoods and Bathrooms Fans