EFFICIENT AND EASY INSTALLATION - the door seal for air conditioning systems is a practical helper and can be attached to the balcony door in just a few simple steps. Simply stick the supplied adhesive tape into the door frame, attach the door seal to the door frame and you're done. The seal reliably prevents warm outside air from flowing back into the air-conditioned interior and effectively discharges the warm air from the device to the outside through the exhaust air hose SAVE MONEY with the energy-saving door seal - sealing the door increases the cooling capacity of the local air conditioning system. This reduces general energy consumption as the room cools down more quickly and keeps a stable temperature over the long term. The purchase price pays for itself in a very short time. The zipper system allows you to STILL USE the door even when the air conditioner is in use the earth! This door seal helps to reduce energy consumption and carbon dioxide emissions, which are particularly high in summer due to the massive use of air conditioning. PLUS, at the same time it offers a perfect protection against small uninvited summer guests and prevents the ingress of moisture EXTRA STRONG ZIPPER - for maximum hold of the air conditioning hose in the door seal, extra strong zippers are used, which prevent the automatic opening of the closure when the air conditioning hose is used. Extra cable ties are included with the product for additional support and attachment FOR AIR CONDITIONERS WITH ONE AND TWO HOSE TECHNOLOGY - thanks to the two zip openings, the window seal is suitable for all portable air conditioners, regardless of the manufacturer. The window seal material is durable, UV-resistant, water-repellent and washable at 40 C. With German installation instructions