The POWERTEC 4-Inch to 2-1/2-Inch Reducer allows you to connect 4-Inch port to a 2-1/2-Inch hose or a 2-1/2-Inch port to a 4-Inch hose. The 2-1/2-Inch opening also allows you to fit Shop-Vac, Sears and a variety of other wet/dry vacuum cleaners. Simple to install, use and uninstall for the utmost in ease, performance and reliability.
. Connect 4-Inch opening to a 2-1/2-Inch hose or a 2-1/2-Inch opening to a 4-Inch hose
. Adaptable to Shop-Vac, Sears and a variety of other wet/dry vacuum cleaning
. Tough, durable ABS plastic material
. 2-1/2-Inch nominal end measures 2-31/64-Inch O.D. and 2-19/64-Inch
. 4-Inch nominal end measures 3-15/16-Inch O.D. and 3-45/64-Inch I.D.