Seal-tite 3172B-041206 Straight Boot 4x12x6 in 30 Gauge

Product Description

The SEAL-TITE 3172B-041206 is a 30-gauge sheet metal straight boot designed for duct-to-register transitions in residential and light commercial HVAC systems. This fitting connects rectangular ductwork to a floor, wall, or ceiling register opening, delivering conditioned air to the occupied space. Fabricated from 30-gauge steel, the boot provides a rigid, durable transition point that maintains airflow integrity at the supply or return terminus. HVAC sheet metal installers and duct fabricators reach for this fitting during new construction and system retrofit work where a clean, low-profile straight boot is required.

This boot measures 4 inches by 12 inches on the duct collar side and 6 inches on the register face, making it suited for residential forced-air systems using standard register sizes. It is appropriate for supply or return applications in ducted air-distribution systems where a straight-through boot profile is required. Installers working on new construction or renovation projects will find this fitting compatible with standard rectangular duct configurations in that size range.

Key Features

• 30-gauge steel construction provides rigidity for duct-to-register transitions
• Straight boot profile supports direct floor, wall, or ceiling register installations
• 4 inch by 12 inch duct collar dimension suits standard rectangular duct runs
• 6-inch register face aligns with common residential register opening sizes
• Sheet metal fabrication compatible with standard drive-and-S slip connections

Compatibility

Designed as an OEM-style sheet metal fitting for use with standard rectangular ducted HVAC air-distribution systems requiring a straight boot at the register termination point.

Installation Notes

Installation is performed by licensed HVAC technicians or experienced sheet metal workers. Power down the air-handling unit and confirm the system is de-energized before cutting into or modifying existing ductwork. Seal all joints with listed duct sealant or metal-backed tape per SMACNA guidelines and local mechanical code requirements. Do not use standard cloth duct tape as a primary sealant on sheet metal connections.

Technical Specifications

• Gauge: 30 GA
• Duct Collar Dimensions: 4 inches x 12 inches
• Register Face Dimension: 6 inches
• Boot Style: Straight

Standard Information

• Brand: SEAL-TITE
• Manufacturer Part Number: 3172B-041206