Air Flow Products MTD1210 Conical Spin-in Takeoff with Damper

Product Description

The Air Flow Products MTD1210 is a metal duct conical spin-in takeoff fitting with an integrated damper, designed for branch duct connections in residential and light commercial forced-air HVAC systems. The fitting spins into a pre-punched or field-cut hole in a main trunk duct and locks in place, creating a sealed branch takeoff point. The built-in damper allows the installer to balance airflow at the takeoff without adding a separate balancing damper downstream. Sized at 12 x 10 inches, it suits trunk-to-branch transitions common in sheet metal duct systems.

This fitting is used in forced-air supply duct systems where branch runs need to be tapped off a rectangular or round main trunk. It is appropriate for new construction and retrofit duct work in residential and light commercial applications. HVAC sheet metal mechanics and duct installers are the primary trades who work with this type of fitting during system layout and installation.

Key Features

• Conical spin-in design locks securely into a trunk duct knockout or field-cut opening
• Integrated damper allows airflow balancing at the takeoff point without additional hardware
• Metal construction for durability and compatibility with standard sheet metal duct systems
• 12 x 10 inch sizing suits common trunk-to-branch transition requirements
• Eliminates the need for a separate balancing damper on the branch run

Compatibility

Designed as an OEM-style replacement or new-install fitting for standard sheet metal forced-air supply duct systems that use conical spin-in takeoff connections.

Installation Notes

Installation is performed by a qualified HVAC mechanic or sheet metal installer in accordance with SMACNA duct construction standards and applicable local mechanical codes. Shut down the air handler and confirm the system is depressurized before cutting into the trunk duct. Secure the spin-in collar firmly and seal all joints with UL-listed duct sealant or approved metal tape to meet leakage requirements. Set the damper position during system commissioning as part of airflow balancing procedures.

Technical Specifications

• Product Type: Conical Spin-In Takeoff with Damper
• Material: Metal
• Size: 12 x 10 inches

Standard Information

• Brand: Air Flow Products
• Manufacturer Part Number: MTD1210