Grey Metal-10X4X5in. End Boot

10 In. X 3-1/4 In. to 5 In. Stack Boot

Made in USA Galvanized Straight Register Boot Duct, 4" x 10" Rectangle, 6" Diam

Made in USA Galvanized HVAC Register 90? Boot Duct, 2-1/4" x 10", 5" Diameter

Stack Boot Rectangular Duct Galvanized Steel Durable 10 In. X 3-1/4 In. to 5 In.

Grey Metal-12X4X7 in. Straight Boot

6" ID Galvanized Duct End Stack Boot 3-1/4" Long x 10" Wide, Standard Gage