Duro Dyne 6104 Insulated Access Door 12 Inches X 12 Inches

Product Description

The Duro Dyne 6104 is a 12 inches x 12 inches insulated access door designed for use in HVAC duct systems. HVAC technicians, sheet metal contractors, and mechanical system installers rely on access doors like this one to gain entry into ductwork for duct cleaning, equipment inspection, component testing, and system repairs. The 6104 is built from 24-gauge galvanized steel, giving it the structural strength needed to hold up in demanding commercial and residential HVAC applications. The galvanized finish protects against rust and corrosion, making it a reliable long-term solution in a range of installation environments.

One of the standout features of this access door is its nesting door design. Unlike traditional hinged access panels, the nesting configuration eliminates the need for compression seals and significantly reduces air leakage. This design has been tested to 10 inches of static pressure with minimal leakage, making it well suited for systems where maintaining airtight integrity is critical. The frame is half an inch wide and fully gasketed, adding another layer of sealing performance around the perimeter.

The door is insulated with one inch thick fiberglass, helping prevent heat loss and condensation at the access point. The integral frame design features no open corners, which simplifies installation and improves overall seal quality. Square tabs replace traditional sharp edges, reducing the risk of cuts or injury during handling and installation. There are no extra holes drilled into the door, so plug rivets are not required. Duro Dyne offers this access door in 10 stock sizes ranging from 6 inches x 6 inches through 24 inches x 24 inches, giving contractors flexibility across a wide range of duct opening sizes.

• 24-gauge galvanized steel construction with corrosion-resistant finish
• Nesting door design tested to 10 inches static pressure with minimal air leakage
• One inch thick fiberglass insulation with half-inch wide gasketed frame for airtight sealing

Product Highlights

The Duro Dyne 6104 insulated access door delivers reliable, low-leakage access to ductwork in HVAC systems. Its gasketed integral frame, fiberglass insulation, and nesting door design make it a dependable choice for sheet metal and mechanical contractors who need performance and ease of installation.

Product Information

Standard Information

• Brand: DURO DYNE
• Manufacturer Part Number: 6104

Technical Specifications

• Material: Galvanized Steel
• Gauge: 24 gauge
• Finish: Galvanized
• Door Shape: Nesting Door Design
• Door Size: 12 inches x 12 inches
• Door Thickness: 1 inch
• Insulation Material: Fiberglass
• Insulation Thickness: 1 inch
• Frame Width: 0.5 inches
• Frame Type: Integral, No Open Corners
• Tested Static Pressure: 10 inches SP
• Available Sizes: 6 inches x 6 inches through 24 inches x 24 inches (10 stock sizes)
• Product Type: Insulated Access Door