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Walmeck Automatic Vent Opener Greenhouse Windows Opener Auto Vent Opener Temperature Sensitive Paint Spraying Iron Single Spring Vent Opener
Walmeck Automatic Vent Opener Greenhouse Windows Opener Auto Vent Opener Temperature Sensitive Paint Spraying Iron Single Spring Vent Opener
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Detail【Wide Applicability】Single spring vent opener can be closed manually and easy to install, fit for most of aluminum frame greenhouse. 【Adjustable Temperature 】Temperature is adjustable from 15-25℃ (60-77℉) by turning the cylinder, maximum opening at about 30℃/86℉ (depending on adjustmen 【Automatic Vent Opener】Greenhouse windows opener can open and shut your greenhouse window automatically to maintain the best growing temperature and preventing your greenhouse from overheating.
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