638-421

This professional-grade 4-inch by 10-inch universal boot is designed to provide a high-performance transition in residential and commercial HVAC systems. It serves as a critical connection point, allowing air to move efficiently from 3-inch round ductwork into a 4x10-inch rectangular register or vent. Built from high-quality galvanized steel, this metal venting boot is engineered for durability and resistance to corrosion, ensuring a long-lasting and airtight seal. It is a vital component for anyone looking to optimize their heating, ventilation, and air conditioning (HVAC) setup, providing the necessary adaptation for floor, wall, or ceiling air distribution.
Type: Metal Venting
Size: 4" x 10" to 3"
Dimensions: 10 in × 4 in × 3 in
Application: Used in HVAC ducting to transition from round pipes to rectangular registers in heating, cooling, and general ventilation applications.
Specifications: Galvanized steel construction for rust resistance; universal fit design for standard 3-inch round ducting and 4x10-inch vent openings.