Akron Brass Eductors [3125] 125 GPM Pyrolite In-Line Foam. 3125 In-Line Foam Eductors Akron® Municipal Eductors feature a large, easy to read, and removable metering dial with infinite settings between 0% and 6%. Detents at 1⁄4, 1⁄2, 1, 3 and 6%. The Eductors are rated to flow at 200 psi (14 bar) inlet pressure and work well with nozzles rated at 75 and 100 psi (5 and 7 bar).