POWERTEC Collecteurs de Poussière Porte de Soufflage Aluminium Bouchon Proof Design 4 en Dia (6-PacK)
Introducing the 4 in. Aluminum Blast Gate by POWERTEC. Universal Fit Featuring a nominal 4 in. Dust Collection Accessories Type: Blast Gate. Sturdy aluminum with premium steel gate for lasting use.