Everbilt 3 In. To 4 In. Plastic Duct To Duct Increaser

Product Description

The Duct to Duct Increaser connects 3 in. to 4 in. ducts together. It is ideal for bathroom fan exhaust applications. Finished in black color. The increaser is designed to be a tight fit to reduce air leaks in the connections. When using the increaser with a 3 in or 4 in snap pipe (aluminum or galvanized) , it may be necessary to unsnap the receiving end of the pipe, then insert the increaser and snap the pipe back together.|Made of polypropylene|Used when your exhaust port or exhaust hood needs to be increased from 3 in. to accommodate a 4 in. duct|Consult your local building codes for approved installation practices|Light weight design