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DurableMade of high quality of aluminum and stainless steel material for durability. |
No Electric Power NeededSolar energy sourced, no operating cost. |
AutomaticAutomatically open or close the greenhouse vents as temperature rises or drops. |
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Overheating ProtectionThis automatic window opener will help you maintaining the best growing temperature and prevent your greenhouse from overheating. |
Strong ForceLifts up to 15.4 Lbs(7kgs),suitable for most of greenhouse window and vent. |
Easy installationComes with a fitting accessory pack and a detailed manual for easy installation. |
Automatic Single Spring Silver Aluminum Vent Opener | Automatic Single Spring Black Stainless Steel Vent Opener | Automatic Double Spring Black Stainless Steel Vent Opener | Automatic Double Spring Silver Aluminum Vent Opener | 132 Lbs Heavy Duty Automatic Vent Opener | |
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Color | Silver | Black Powder Coated | Black Powder Coated | Silver | Green Powder Coated |
Material | Aluminium | Premium Steel | Premium Steel | Aluminium | Premium Steel |
Springs | One | One | Two | Two | Not Applicable |
Lift Capacity | 15.4Lbs(7Kgs) | 15.4Lbs(7Kgs) | 15.4Lbs(7Kgs) | 15.4Lbs(7Kgs) | 132 Lbs ( 60kgs ) |
Maximum Window Opening | 18"(45cm) | 18"(45cm) | 18"(45cm) | 18"(45cm) | 13(33cm ) |
Power | Solar | Solar | Solar | Solar | Solar |
Automatic | ? | ? | ? | ? | ? |
Overheating Protection | ? | ? | ? | ? | ? |
Open Temperature Adjustable | ? | ? | ? | ? | ? |
Durable | ? | ? | ? | ? | ? |