Details: * Ideal for Automatic Window opener replacement * 100% Brand new and high quality * Help to maintains the best growing temperature and prevents your greenhouse from overheating. * Important notice:Do not use this opener anywhere the temperature will exceed 50° (122F) * Please ensure your greenhouse window can be opened freely by at least 45cm (18") Specifications: * Replacement Greenhouse Window Opener Cylinder * Temperature range 15°- 25°/60°-77F * Maximum opening weight 7kg/15lb * Adjustable length 33-45cm * This products need to be refrigerated before use it. Package: .
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