The Casaflow Nova is an exceptional alternating replacement mattress that provides maximum comfort and flexibility for the client. The Microprocessor controlled pump has 10 levels of comfort range, with the ability to choose between different therapy modes. MATTRESS FEATURES INCLUDE: 20cm (8") replacement mattress. 20 x Alternating cells - Emergency CPR facility. Waterproof, vapour permeable zipped cover. Maximum User Weight: 229Kgs (36 Stone). PUMP FEATURES INCLUDE: 10 Level Comfort Range - Adjustable Cycle Time. Therapy Modes: Alternating / Static / Auto Firm / Seat Inflation Function. Power Fail / Low Pressure Alarms (Audible & Visual). 8 litres Per Minute Output