4" x 3" Galvanized Steel Round Reducing Gas Vent Wye

The Reduction Wye Features a Branch and/or Base with a Smaller Diameter than the Trunk Size and Provides a Convenient Double-Wall Connection to Furnace or Water Heater in a Common Connector

Gas Vent Wye; Type Round, Reducing; Size 4" x 3"; End to End Dimension 9"; Material Thickness 0.018" (Outer), 0.012" (Inner); Material Aluminum Alloy (Inner), Galvanized Steel (Outer); Crimp Supplied No; Applicable Standard UL; Dimensions 4-1/2" (Trunk) x 3-1/2" (Branch) x 4-1/2" (Base); Packaging Quantity 6 per Case