Seal-tite 4235-0961207 Oval Stackhead 9 Inch Throat

Product Description

The SEAL-TITE 4235-0961207 is an oval stackhead fitting designed for use in residential and light commercial HVAC duct systems. A stackhead connects a vertical supply duct stack to a floor or sidewall register boot, making it a key transition component in forced-air distribution. This unit features a 9 inch throat dimension and an oval body measuring 6x12-7, allowing it to interface with standard oval duct runs. HVAC installers and sheet metal contractors select this type of fitting when roughing in supply air distribution in new construction or retrofit applications.

This stackhead is suited for forced-air heating and cooling installations where oval ductwork feeds floor registers or wall boots in residential and light commercial buildings. The 9 inch throat dimension makes it appropriate for supply runs requiring that collar size. It is installed during rough-in before drywall or flooring is set, and it works with standard oval duct sizes common in residential new construction and remodel projects.

Key Features

• 9 inch throat dimension for standard oval duct stack connections
• Oval body profile sized at 6x12-7 for compatibility with common oval duct runs
• Stackhead design transitions vertical duct stack to register boot or floor outlet
• Suitable for residential and light commercial forced-air distribution systems

Compatibility

Designed as an OEM-style replacement or new-construction fitting for residential and light commercial HVAC oval duct systems using a 9 inch throat stackhead with 6x12-7 oval duct sizing.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal contractor. The air handling system should be shut down and the disconnect locked out before fitting or modifying any duct components. Secure the stackhead to the duct stack using approved sheet metal screws and seal all joints with UL 181-rated duct tape or mastic sealant per local mechanical code requirements. Do not compress or deform the oval profile during installation, as this will reduce airflow and affect system performance.

Technical Specifications

• Throat Size: 9 inches
• Oval Duct Size: 6x12-7
• Fitting Type: Oval Stackhead

Standard Information

• Brand: SEAL-TITE
• Manufacturer Part Number: 4235-0961207