Akron Brass Eductors [3250] 250 GPM Pyrolite In-Line Foam With 2.5" (65 mm) Inlet Size. 3250 Akron Municipal Eductors feature a large, easy to read, and removable metering dial with infinite settings between 0% and 6%. The Eductors are rated to flow at 200 psi (14 bar) inlet pressure and work effectively with nozzles rated from 50 to 100 psi (3 to 7 bar).