Atco Rubber Products 5502503 Flexible Air Duct 3in X 50ft

Product Description

The ATCO RUBBER PRODUCTS 5502503 is a 3-inch diameter, 50-foot uninsulated flexible air duct designed for use in residential and light commercial HVAC distribution systems. This silver-jacketed duct provides a flexible, low-resistance airflow path between supply plenums, branch takeoffs, and diffusers or registers. Its uninsulated construction makes it appropriate for conditioned-space runs where condensation and thermal loss are not primary concerns. HVAC installers and sheet metal contractors work with this duct type on new construction and retrofit projects requiring a compact, flexible run in tight or irregular framing cavities.

This duct is suited for supply-side air distribution in residential forced-air systems and light commercial applications where a 3-inch round duct is specified. Common install scenarios include bathroom exhaust, small branch supply runs, and rangehood or ventilation connections where short to medium runs are needed and insulation is not required by the system design or local mechanical code. Always verify local code requirements before selecting uninsulated duct for a given application.

Key Features

• 3-inch inner diameter for compact branch supply and ventilation runs
• 50-foot length provides adequate material for multiple branch connections per roll
• Flexible construction allows routing around framing, joists, and obstructions without rigid fittings
• Uninsulated design reduces cost and weight for conditioned-space or short interior runs
• Silver jacket finish is compatible with standard HVAC duct tape and mastic sealants

Compatibility

Designed as an OEM-style flexible duct replacement or new-installation material compatible with standard 3-inch round HVAC fittings, collars, and takeoffs used in residential and light commercial forced-air distribution systems.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified mechanical contractor in accordance with local mechanical codes and SMACNA flexible duct installation standards. Power down the air handling unit and close the system dampers before making connections. Secure both ends of the duct to collars or takeoffs using approved mechanical fasteners and seal all joints with UL 181-rated mastic or foil tape. Avoid sharp bends, kinks, or excessive compression, as these reduce airflow and system efficiency.

Technical Specifications

• Inner Diameter: 3 inches
• Length: 50 feet
• Insulation: Uninsulated
• Jacket Color: Silver

Standard Information

• Brand: ATCO RUBBER PRODUCTS
• Manufacturer Part Number: 5502503