Seal-tite WK38-24X08RAB Return Air Box 24x8 in

Product Description

The SEAL-TITE WK38-24X08RAB is a return air box designed for residential and light commercial HVAC systems where a clean, sealed duct connection at the air handler or furnace return is required. This unit accommodates a 24-inch by 8-inch duct opening, making it suitable for standard rectangular return duct configurations. It provides a secure transition point between the return duct and the air handling equipment, helping to minimize air leakage and maintain system efficiency. HVAC technicians and installers typically specify this type of return air box during new equipment installations and duct retrofit projects.

The WK38-24X08RAB fits into return-side duct systems where a rigid, dimensionally consistent plenum connection is needed. It is appropriate for residential forced-air heating and cooling applications and light commercial installations that use standard rectangular duct sizing. This box is typically installed at the base of a vertical air handler or furnace where the return duct terminates, providing a clean and sealed interface for the return air path.

Key Features

• 24-inch by 8-inch duct opening suits standard rectangular return duct configurations
• Designed to minimize air leakage at the return air connection point
• Rigid construction provides a dimensionally stable transition for the return duct
• Suitable for new installations and retrofit duct projects

Compatibility

Designed as an OEM-style return air box for residential and light commercial forced-air HVAC systems with a 24-inch by 8-inch return duct opening.

Installation Notes

Installation should be performed by a qualified HVAC technician in accordance with local mechanical codes and manufacturer guidelines. Power the air handling unit off and verify the system is de-energized before beginning work on the return air plenum or duct connections. Seal all joints with listed duct sealant or approved tape to maintain system airtightness and comply with energy code requirements. Do not restrict return airflow by over-reducing the duct opening during installation.

Technical Specifications

• Duct Opening Width: 24 inches
• Duct Opening Height: 8 inches

Standard Information

• Brand: SEAL-TITE
• Manufacturer Part Number: WK38-24X08RAB