US301FS - Aluminum universal end cap spiral grille

The US301FS is an aluminum universal end cap spiral grille designed for use in HVAC systems. This single deflection grille features 3/4" blade spacing with blades running parallel to the short dimension. Its universal end cap design allows for direct mounting to ducts ranging in diameter from 10" to 36" in even increments, eliminating the need for additional components and simplifying installation.

Crafted from durable aluminum, the US301FS is built to withstand the rigors of commercial and industrial HVAC applications. It features a standard foam gasketing that ensures a tight seal to the duct, minimizing air leakage and maximizing system efficiency. The grille is available with either single or double deflection, and offers the flexibility of vertical or horizontal front louvers. For added control, an optional Air Scoop Damper (ASD) allows for on-demand volume adjustment accessible from the grille face with a simple Phillips screwdriver.

The US301FS spiral grille is a versatile solution suitable for a wide range of HVAC projects. Its efficient design and ease of installation make it an ideal choice for new construction and retrofit applications in commercial buildings, institutions, and industrial facilities. This grille seamlessly integrates into ductwork systems, providing reliable air distribution while maintaining a professional and aesthetically pleasing appearance. Its Masterformat Division categorization (23 37 13) confirms its intended use for diffusers, registers, and grilles within HVAC systems.