AC Infinity 4-Inch Ducting Collar – Galvanized Steel Inlet Flange for Dryers and Range Hoods

Overview

The AC Infinity 4-inch Ducting Collar is a robust galvanized steel inlet flange designed to connect ducting to flat surfaces and direct exhaust to the outdoors. With a 4-inch duct opening and a 7-inch collar, it works with standard ducting while offering a corrosion-resistant zinc finish that holds up to heat and moisture in everyday ventilation tasks.

Key design elements include crimped rims and a raised lip on the duct opening, which help secure ducting and reduce slip during setup. The flat brim sits flush against ceilings, walls, or floors, forming an airtight seal that helps minimize stray particles and misdirected airflow. Crafted from galvanized steel, the collar is built to endure warm air and routine use without quick wear.

Core benefits

• Crimped rims and raised lip provide a secure grip on both flexible and rigid ducting.
• Flat brim lays flush against flat surfaces to create an airtight seal and reduce leakage.
• Galvanized steel body with zinc coating delivers corrosion resistance and heat tolerance.
• Compact 4-inch duct opening with a 7-inch collar accommodates common ducting setups.

Common uses and practical applications

• Pair with range hoods, tumble dryers, and bathroom fans to vent exhaust outdoors.
• Function as a dust collection port in wood shops or as an intake port when used with an inline duct fan in grow tents.
• Serve as a retrofit component for routing ductwork through flat surfaces like walls, ceilings, or floors.

What to expect in real-world setups

This collar’s all-metal construction and zinc finish are suited for spaces that see heat and humidity, making it a durable option for retrofit projects. While performance can vary by installation, the combination of a tight seal, secure grip, and temperature resistance aligns with many standard venting scenarios.

Installation and care tips

• Verify duct opening size (4 inches) matches your ducting before installation.
• Clean mounting surfaces and verify the seal after fitting to ensure optimal airflow.
• Use compatible fasteners and sealants appropriate for galvanized steel on your mounting surface.