The JET 4" Plastic Blast Gate is designed for JET dust collectors (but, its universal fit makes it compatible with most other dust collectors). This blastgate gives you ideal control over air flow between woodworking machines. Featuring black ABS plastic construction, this blastgate is designed for years of use. Finally, this dust collection accessory is covered by JET Tool's 1-Year Warranty.
The Jet 4-Inch Blastgate improves your dust collection system. Blast gates are used to control airflow from one machine to another, maximizing system efficiency. These 4-inch OD ABS plastic blast gates have a textured surface and an easy sliding-gate action, and feature a two-degree tapered fit for easy hookup. This Blastgate can be used with metal or plastic ductwork.

You've done the right thing by outfitting your shop with a dust-collection system-now make it work even better. Blast gates are used in dust-collection systems to control airflow from one machine to another, maximizing system efficiency. Economically priced, these 4-Inch OD ABS plastic blast gates have a textured surface and an easy sliding-gate action.