MASTER PUMP SYSTEM WITH PRESSURE ADJUSTMENT Made of stiff and strong ABS with control handle for easy pressure regulation. Air amount is adjustable to suit patient weight from 40 to 90 kg (28492) or 120 kg (28495). The mattress should inflate totally in about 20 minutes. Air output 2.5 l/min. Master pump can be used with bubble or interchangeable section mattress. Flame retardant PVC. Multilingual user manual: GB, FR, IT, ES, DE.