7 Best Pressure Washer Sandblasting Kits (Reviews amp;
#0183;#32;Wet sand blaster for pressure washer is suctionfed injection of sand into water system. Working pressure of pressure washer sandblaster attachment is up to 2500 PSI. Orifice Max flow rate: 2 GPM. Temperature is up to 140#176;F/60. Please check image 6 to choose the size of orifice.