Seal-tite 4271-041006 90 Degree Oval Register Box 4x10x6

Product Description

The SEAL-TITE 4271-041006 is a 90-degree angle oval register box designed for use in residential and light commercial HVAC duct systems. This fitting transitions supply air from a rectangular or oval duct run to a floor, wall, or ceiling register opening. The box measures 4 inches by 10 inches by 6 inches and features a 90-degree offset throat that allows installers to make directional changes within tight framing cavities. HVAC technicians and sheet metal installers use this type of register box to terminate supply runs cleanly at the register face.

This register box is suited for new construction and retrofit applications where a 90-degree directional change is required at the supply outlet. The oval configuration is common in residential forced-air systems where oval duct is routed through floor joists or wall cavities. The 4-inch by 10-inch face opening accepts standard register grilles of that size, and the 6-inch depth accommodates typical framing dimensions in both platform-frame and balloon-frame construction.

Key Features

• 90-degree angle throat for directional changes within framing cavities
• Oval duct configuration compatible with standard residential supply runs
• 4 x 10 inch face opening accepts standard register grilles
• 6-inch box depth fits typical floor joist and wall framing
• Designed for supply-side termination in forced-air duct systems

Compatibility

Designed as an OEM-style replacement and new-installation fitting for residential forced-air supply duct systems using oval duct configurations with a 4 x 10 inch register face opening.

Installation Notes

Installation is typically performed by a licensed HVAC technician or sheet metal mechanic. Shut down the air handling unit and confirm the system is depressurized before cutting into existing ductwork. Secure the register box to framing with appropriate fasteners and seal all joints with listed duct sealant or metal-backed tape per local mechanical code requirements. Do not leave duct joints unsealed, as air leakage at supply terminations reduces system efficiency.

Technical Specifications

• Dimensions: 4 x 10 x 6 inches
• Configuration: 90 Degree Angle
• Duct Shape: Oval
• Application: Supply Air Register Termination

Standard Information

• Brand: SEAL-TITE
• Manufacturer Part Number: 4271-041006