PulsaFeeder Pulsatron LPH8MA-PHCB-XXX Electronic Metering Pump 600GPD 1A (R31) por | ago 10, 2026TubingTubing. 50″ I.D. x. 75″ O.D. /. 50″ Ball, 25 GPH only. Peak Input Power300 Watts, Average Input Power At Max SPM: 130 Watts. Average Current Draw1.0 / 0.5. Turndown Ratio100:1.