Akron Brass AkroFoam Pyrolite [4480] 2 1/2'' (65 mm) Master Stream Electric Nozzle with Pickup Tube. The AkroFoam foam nozzles are self-educting master stream nozzles designed for educting foam at flow rates up to 1000 gpm (4800 lpm). Contact a distributor today for more information about our master stream foam nozzles.