Скачать или смотреть Amylove 4 Pcs Dual Spring Automatic Roof Vent Opener Greenhouse Accessories Solar Greenhouse Heater

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Amylove 4 Pcs Dual Spring Automatic Roof Vent Opener Greenhouse Accessories Solar Greenhouse Heater Sensitive Ventilation Kit Automatic Window Vent Opener Replacement for Gardening

Package Includes: you will receive 4 pieces of automatic greenhouse vent openers, enough quantity to meet your needs and replacements, and each opener comes with accessories for easy installation
Reliable Material: these automatic greenhouse window openers are mainly made of aluminium alloy material, reliable and reusable, sturdy and strong, not easy to break or rust, which can serve you for a long time and you can also use them with confidence
Double Spring Design: our solar heat sensitive roof vent opener adopts double spring design, which has stronger thrust force and more solid; In addition to ordinary areas, it can also be applied in windy mountainous areas, bringing much convenience to you
Solar Heat Sensitive: the auto greenhouse vent opener will remain open, when the temperature exceeds 25 degrees Celsius, and the opener will close completely, when temperature drops to 15 to 18 degrees Celsius, using solar energy, no batteries or electrical power needed
Widely Applicable: these greenhouse accessories are practical and useful tools, which can be widely applied for greenhouse windows and greenhouse vents in higher wind situations, maintaining the nice growing temperature and preventing your greenhouse from overheating
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