Specification: Sand Grade Type:up to 60 grit Abrasive material;aluminum oxide.garnet powder.glass bead Drum capacity:(gallons)3.7uk Sand capacity:22.6/50kg/lbs Operating pressure:100~150PSI Flow rate req:10~16CFM Compressor size HP(minimum):3 Gun inlet size:3/8”hose adaptor fitted Air inlet hose diameter:3/8”(10mm) Nozzle size:4mm.5mm.6mm.7mm(ceramic)   Item Number:Hst-SFSB(50L) Pcs/Ctn:1 G.W/N.W.:7.5/5.5kgs Dimension:51*33*35cm Q’TY/40’:966pcs