Seal-tite 1374-040806 90 Degree Angle Boot 4x8x6 in

Product Description

The SEAL-TITE 1374-040806 is a 90-degree angle boot with a 2-inch extension, designed for transitioning rectangular duct to a floor, wall, or ceiling register opening in forced-air HVAC systems. The boot measures 4 inches by 8 inches by 6 inches and delivers a tight, low-leakage connection between sheet metal ductwork and the register face. The extended collar gives installers additional depth for securing the boot in thick subfloor or wall assemblies. HVAC sheet metal mechanics and duct installers handle this fitting as part of new construction or duct replacement work.

This boot is suited for residential and light commercial forced-air supply or return applications where a 90-degree transition is required at the register location. It is commonly installed in floor-drop, sidewall, and ceiling configurations to connect rectangular trunk or branch duct runs to standard register openings. The 2-inch extension provides clearance in deeper framing cavities or thicker floor decking where a standard boot collar would fall short.

Key Features

• 90-degree angle configuration for perpendicular duct-to-register transitions
• 2-inch extension collar for use in deep framing cavities or thick subfloor assemblies
• 4 inches by 8 inches duct opening to match standard rectangular duct sizing
• 6-inch register opening dimension for proper register seating
• Compatible with standard sheet metal ductwork installation methods including drive cleats and S-slips

Compatibility

Designed as an OEM-style replacement or new-construction fitting for residential forced-air HVAC duct systems requiring a 4-inch by 8-inch by 6-inch 90-degree angle boot connection.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified sheet metal mechanics. Power down the air handling unit at the disconnect before working on connected ductwork. Secure the boot to branch duct with drive cleats, S-slips, or sheet metal screws as appropriate, and seal all joints with listed duct mastic or UL 181-rated tape per local mechanical code requirements. Do not compress or kink flexible duct connections at the boot collar.

Technical Specifications

• Duct Opening: 4 inches x 8 inches
• Register Opening: 6 inches
• Extension Length: 2 inches
• Configuration: 90 Degree Angle Boot

Standard Information

• Brand: SEAL-TITE
• Manufacturer Part Number: 1374-040806