This Gray Metal galvanized straight register boot provides an in-line transition from round ductwork or flexible duct to a floor register or wall grille. The 30-gauge galvanized steel construction resists rust and corrosion for long-lasting performance in residential and commercial HVAC systems.

• Register opening size: 4" x 12"
• Round collar size: 6" diameter
• 30-gauge galvanized steel construction
• Straight boot design for direct in-line duct connections
• Transitions round ductwork to rectangular register openings
• Compatible with standard floor registers and wall grilles