Sealey dehumidifier 20ltr sealey sdh20 compact efficient portable unit that extracts up to 20 litres of water per day removes excess moisture from air to prevent build up of mildew and mould features 2 4 8 hour timer auto defrost function and adjustable air outlet refrigerant is environmentally friendly r134a may be connected to a drain hose for continuous operation sealey sdh20 dehumidifier 20ltr