Flutesan 4 x 10 x 4 Inch Rectangular Duct End Boot Galvanized Floor Duct Boot 90 Degree Rectangular to Round HVAC Transition, 4” Round to 10” x 4” Vent Adapter, 30 Gauge

Features: Space optimized installation solution: The vent adapter compact 90° form factor enables installations in confined cavities where traditional duct bends cannot fit, making it particularly useful for retrofit projects, basement HVAC extensions, and modular ventilation system assemblies. Duct transition precision: Hvac supply duct engineered to create a smooth transition between 4 inch/ 10.2 cm round ductwork and 10 x 4 inch/ 25 x 10.2 cm rectangular registers, this end boot maintains airflow efficiency while adapting to standard HVAC layouts Specifications: Material: galvanized Color: silver Size: approx. 4 x 10 x 4 inch/ 10.2 x 25.4 x 10.2 cm Package includes: 1 x Galvanized duct end boot Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays

• Product Function and Specifications: this galvanized duct end boot end boot connects a 4 inch/ 10.2 cm round duct to a 10 x 4 inch/ 25 x 10.2 cm rectangular register opening, designed for use in HVAC heating, cooling, and warm air distribution systems
• Design and Application Scenarios: rectangular HVAC end boot featuring a 90° angled design, it allows smooth airflow redirection in tight spaces such as behind walls, under floors, or above ceilings where straight duct runs are limited
• Material and Durability: galvanized end boot constructed from 30 gauge galvanized steel, it provides structural strength and corrosion resistance suitable for long-term residential and light commercial applications
• Compatibility and Apply Cases: 4 x 10 floor register vent compatible with standard 4 inch/ 10.2 cm round duct pipes and 10 x 4 inch/ 25 x 10.2 cm vent openings; Suitable for furnace ducts, warm air systems, bathroom exhausts, and ventilation upgrades
• Installation and Fit: 90 degree rectangular to round HVAC transition precision-formed edges enable a secure connection using screws or HVAC foil tape, supporting both DIY installations and professional HVAC contractor use