Speedi-Products EX-HLFB 06 6-Inch Diameter Louvered Plastic Flush Hood, Brown No Tailpipe Speedi-Exhaust Products are made in the USA Low Profile easy to Install Suitable for dryer or bathroom fan venting,Fits a 6 Diameter Pipe Seal joints with approved duct mastic sealants & tapes Consult your local building codes for approved installation practices