Pack of 3 Replacement Nozzles 2.5mm ID for the (51117) 50 LB. Pressure Blaster, (51118) 100 Lb. Pressure Blaster and the (51119) 200 lb. Pressure Blaster. Requires 7 cfm at 80 psi. 3-Pack Ceramic/Rubber Blast Nozzle 2.5MM ID