Specifications: Siphon Feed Blast Gun Die-cast aluminum Aluminum grip Multi-purpose design for blasting and high pressure liquid or air cleaning of parts and surfaces Specifications: Material: Aluminum + Ceramic Size:135x150mm Ceramic nozzles: 5mm, 6mm Minimum air requirement: 6 CFM at 80 PSI Package Included: 1 x Siphon Feed Blast Gun 2 x Ceramic Nozzles.