MoorVent MVRS6-ND Round Spiral Duct Register — Without Damper
A purpose-built HVAC air supply register designed to mount directly onto round spiral duct — no boot, no transition, no sheet metal fabrication required. The curved saddle base fits tight to the duct and seats flush on the spiral so installation is clean and secure with just the four screws provided.
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.
Rated for 100–120 CFM airflow. The MVRS6-ND is the no-damper option — great for systems already balanced upstream, or anywhere you want to keep costs lean. Need airflow control at the register? See the MVRS6-D with integral volume damper.
