Seal-tite 1370-041008 Straight Boot 4x10 8in Collar

Product Description

The SEAL-TITE 1370-041008 is a straight duct boot designed for use in forced-air HVAC distribution systems. Straight boots connect the trunk line or branch duct to a floor, wall, or ceiling register, directing conditioned air into the living or working space. This unit features a 4x10 opening with an 8-inch round collar, making it a standard size for residential and light commercial duct fabrication and installation work. HVAC technicians and sheet metal installers use straight boots during new construction and retrofit duct system projects.

This straight boot is suited for residential forced-air heating and cooling systems where a flush, straight-angle transition is needed between round duct and a rectangular register opening. The 4x10 face size is a common register dimension found in residential floor and sidewall applications. The 8-inch collar accepts standard 8-inch round flexible or rigid duct, making it a practical fit for branch runs in a range of single-family and light commercial installations.

Key Features

• Straight-boot configuration for direct inline duct-to-register connections
• 4x10 rectangular face opening matches standard residential register sizing
• 8-inch round collar for connection to 8-inch round duct
• Designed for use in forced-air heating and cooling distribution systems

Compatibility

Designed as an OEM-style replacement or new-installation component for residential and light commercial forced-air duct systems using 8-inch round branch ducts and 4x10 rectangular register openings.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified sheet metal workers. Shut down the air handling unit and close the system disconnect before beginning duct work. Secure the collar to the branch duct with sheet metal screws and seal all joints with UL 181-rated mastic or foil tape per local mechanical code requirements. Verify register alignment and support the boot properly to prevent sagging or joint separation over time.

Technical Specifications

• Boot Type: Straight
• Face Opening: 4x10 inches
• Collar Size: 8 inches round

Standard Information

• Brand: SEAL-TITE
• Manufacturer Part Number: 1370-041008