A purpose-built HVAC air supply register designed to mount directly onto round spiral duct — no boot, no transition, no sheet metal fabrication required.
Fast & Easy Installation
Designed for quick installation using a standard 3.25" hole saw. The register is sized to fit between spiral duct ribs, allowing multiple registers to be installed in a straight row to meet the airflow requirements of your space.
Durable, Long-Lasting Construction
Made from ASA polymer for lasting durability in humid, unconditioned, or sun-exposed spaces. Unlike metal registers, it won't rust or fade — ideal for exposed spiral duct systems in modern HVAC installations.
Flexible Airflow Distribution
Recommended for 25–35 CFM per register, allowing you to customize airflow distribution to meet the needs of each room.
For easy sizing, divide the room's required CFM by 30 to estimate the number of registers needed.
Choose between two installation configurations:
Even Air Distribution: Space registers throughout the room for more uniform airflow and improved comfort.
Concentrated Airflow: Install registers in a row, spaced 4.75" on center (between ribs), to combine airflow for increased throw distance.
