POWERTEC 70108 4-Inch Blast Gate for Vacuum/Dust Collector

POWERTEC 4-Inch Blast Gates optimizes the efficiency of your dust collection system by seamlessly directing the airflow from one machine to another. Save time and hassle with the handy sliding gate; just glide the gate through the case for a thorough cleaning. Durable ABS material. Effective, hassle-free, and simple to use - this essential dust collection accessory comes in handy every time! 4-Inch nominal end measures 3-61/64-Inch O.D. and 3-3/4-Inch I.D.