Super-hard carbide blast cabinet nozzle lasts as much as 40 times longer than ceramic units. Dramatically reduces downtime when using aggressive media like aluminum oxide or silicon carbide. This durable nozzle will also reduce the chance of damage to the suction head. The 1/4in. nozzle requires 15 cfm @ 80 p.s.i. (3-5 hp compressor). Kit includes nozzle, three air jets, and washer.