Specification Brand : KOXXUD BulletPoint1 : KOXXUD Cylinder is the temperature sensing part of various types of window openers, when the window opener is broken, we may not need to spend expensive to replace the window opener, we just need to replace the cylinder, also can make the original window opener work properly, saving your cost. BulletPoint2 : 【VERY ECO-FRIENDLY】The cylinder does not require batteries or electricity, as the indoor temperature and air pressure rise or fall, it automatically opens or closes the greenhouse's vents, which maintains the optimal temperature for plant growth. BulletPoint3 : 【EASY INSTALLATION】Easy installation and storage of the cylinder via the video linked of our products or installation manual. BulletPoint4 : 【HIGH COMPATIBILITY】 The cylinder is the temperature sensor for most window openers, suitable for single spring window openers, double spring window openers, spray black iron window openers, etc. BulletPoint5 : 【NOTE】Minimum opening temperature: 15-25℃; Fully open temperature: 30℃/86℉. BulletPoint6 : 【Effective Odor Control】: Hon&Guan Carbon Filter Utilizes RC 48 lightweight activated carbon with 1200+ IAV and a 38mm thick charcoal bed for higher absorption and a longer life rating, high quality carbon filter for grow tent. BulletPoint7 : 【Durable Construction】: The inline fan features a heavy-duty metal housing for long-lasting durability. With an IP42 protection rating, it offers excellent dust and liquid resistance, performing well even in harsh environments. It comes with a long power cord for easy installation and can be conveniently hung anywhere in your tent Color : Replacement CompatibleMaterial : Wood ExternallyAssignedProductIdentifier1 : 856668002913 ExternallyAssignedProductIdentifier2 : 763552402462 ExternallyAssignedProductIdentifier3 : 0856668002913 ExternallyAssignedProductIdentifier4 : 0763552402462 ExternallyAssignedProductIdentifier5 : 00763552402462 IncludedComponents : 1 roll of tape IndoorOutdoorUsage : outdoor IsAssemblyRequired : 1 ItemDisplayDimensions_Height : 2 inches ItemDisplayDimensions_Length : 15.7 inches ItemDisplayDimensions_Width : 2.7 inches ItemDisplayWeight : 2 pounds ItemName : KOXXUD Replacement Cylinder for Greenhouse Vent Window Opener, Precisely Controlled Greenhouse Vent Accessories 1 PCS Black ItemPackageDimensions_Height : 34.3916 centimeters ItemPackageDimensions_Length : 2.0066 centimeters ItemPackageDimensions_Width : 2.794 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : greenhouse-ventilation-equipment Manufacturer : KOXXUD Material : Iron ModelName : Tunnel Green House ModelNumber : HG1033 NominalWallThickness : 0.006 inches NumberOfBoxes : 1 NumberOfDoors : 1 NumberOfItems : 1 OperationMode : Automatic PackageLevel : unit PartNumber : 1 PowerSourceType : manual ProductDescription : KOXXUD Replacement Cylinder for Greenhouse Vent Window Opener, Precisely Controlled Greenhouse Vent Accessories 1 PCS Black ProductExpirationType : Does Not Expire ProductSiteLaunchDate : 2010-10-12T18:17:25.330Z SafetyWarning : [MORE] Size : Replacement SkipOffer : 1 Style : Modern SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredDgHzRegulation5 : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Plastic UnitCount : 1 UnspscCode : 21000000 WaterResistanceLevel : waterproof