HVAC Premium Heavy Duty Universal Adjustable Tube Cutter Set For Cutting - Copper, Steel, Aluminum (1/8" - 5/8") (3/16" - 1") (1/4" - 1-1/4") 2-Way and the second number represents

and the second number represents the height

The vent also has a bug screen to eliminate pest intrusion

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 34" OR 34" x 22" duct opening (measured at the opening)

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} + Product Details Size & Compatibility - The size of a boot register end is 12" X 2

HVAC Premium Heavy Duty Universal Adjustable Tube Cutter Set For Cutting - Copper, Steel, Aluminum (1/8" - 5/8") (3/16" - 1") (1/4" - 1-1/4") 2-Way and the second number represents+ Product Details Size Adjustable sizes 1 8" 5 8" (3 16mm) 3 16" 1" (5 25mm) 1 4" 1 1 4" (6 32mm) Applications Suitable for Cutting Plastic, Copper, Aluminum, Iron and Stainless Steel Tube Pipe Comes with Handle that attaches easily to cutters. Strong Sharp Cut Straight Cuts blade does not bend or break comes with deburring tool. Precise Cutting Cutters have adjusting knobs to ensure you have the precise diameter dimension for specific tube pipe