The Aspen Peri Pro Air (FP3390) uses stepper motor technology and user-programmable speed control for ultra-quiet, low-wear peristaltic pumping. Max flow 15L/h, max head 12m. 21dB(A) at 1m. 5-year warranty. 110-230V universal, 50/60Hz. IP24. Safety switch 5A NC. Dry-running safe. Designed for high-reliability installations requiring maximum service life.