< > Airlock 100 Window Seal Ideal for portable air conditioning units to stop the air coming in from outside Customer Rating : £25.00 £39.00 Qty Call for stock check This item will be shipped within 10 days.   Reviews (0) (View All) Questions (View All) Add Review Ask Question Email to a friend   Product Description MAXIMISE THE EFFICIENCY OF YOUR PORTABLE AC UNIT By stopping the cold air escaping out of the window, (or warm air in winter for units that have a heat funciton), the Airlock 100 will contribute to an increase in efficiency and effectiveness of your machine. Of course this has some great consequesnces; reduce in energy consumpion, saving in running costs, and a lower carbon footprint. The reverse applies if you have your unit set to heat over winter.  UNIVERSAL Portable air conditioning units often come with window kits to suit a sash window but they are useless for inwards or outwards opening window. This is where the Airlock 100 come in very handy. Suitable for all portable air conditioning units regardless of the manufacturer where these is a need to be place a hose through the window. EASY TO INSTALL If you need any more information on this product or would like any assistance please call our team who are waiting on hand to help.