4" to 3" 2-Way Splitter Duct Connection for Woodwork Dust, Grow Tent

A simple, yet very effective way to connect Two(2x) 3" inch ducts to a 4" inch duct or 4" inch duct fans etc. Features: Easily connect 2x(Two) 3" inch ducts to one 4" inch duct Eliminates the need for building an expensive dust-collection piping system Durable, abrasion resistant construction Specifications: Inlet Port: 4" (Exact ID: 3.78in and OD 3.896in) Outlet Ports (2x): 3" (Exact OD - 2.92, ID - 2.81) Construction: PETG Plastic Included: 1x 4" to 3" 2-Way Splitter