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The CAIN MANUFACTURING N100 is a heavy-duty commercial-grade vinyl flexible duct connector designed to isolate vibration and reduce noise transmission between HVAC air handlers, fans, and duct systems. Constructed with a 24-gauge metal collar on each end and a 3-inch vinyl fabric center section, this connector provides a secure, airtight transition while absorbing mechanical movement. The configuration follows a metal-fabric-metal layout — 3 inches of metal, 3 inches of fabric, and 3 inches of metal — making it well suited for demanding commercial installations. HVAC technicians and sheet metal contractors are the primary installers of this type of component.
This flexible duct connector is intended for commercial HVAC applications where vibration isolation between rotating equipment and rigid ductwork is required. Typical installations include supply and return air connections at air handling units, inline fans, rooftop units, and blower coil assemblies. The Neoflex vinyl fabric resists tearing and holds up under continuous airflow, making it appropriate for light commercial and commercial mechanical systems where durability and longevity are priorities.
Designed as a commercial-grade OEM-style flexible duct connector for use with standard rectangular or round duct systems in commercial HVAC applications where vibration isolation at air handling equipment is required.
Installation is typically performed by licensed HVAC technicians or sheet metal contractors. Shut down and lock out the air handling unit or fan before beginning work. Secure the metal collars to the adjacent ductwork using sheet metal screws and seal all connections with UL-listed duct tape or mastic sealant per local mechanical code requirements. Do not stretch or compress the fabric section beyond its designed range, as doing so can reduce vibration isolation effectiveness and shorten service life.
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