BPN/A model monitor nozzles are designed with an internal built-in inductor to suck and mix the foam concentrate into the water while gathering all possible features of the BPN nozzles to change the discharge pattern of the nozzle as desired. BPN/A nozzles are equipped with a mixing ratio selector equipment located in the foam aspiration port with the possibility to create a mixture between 0.5%-6% mixing ratios. C.S.I. S.r.l. produces BPN/A model self-foam aspirating full water jet- fog nozzles with up to 10000 l/min flow rates. Light anodized alloy, bronze and stainless steel materials are available.