Greenhouse Automatic Window Opener Kit, Heater Sensitive Dual Spring Vent Automatic Opener Kit, Replacement Roof Automatic Opener Agricultural Automatic Window Vent Opener, Load Capacity 30 lbs
$29.99
$29.99
$
13
.99
$13.99
1.Style:1 Pack Dual Spring Opener
- Double spring design: The double spring greenhouse vent opener can bear 30lbs, and the thrust is stronger and stronger than the single spring, which can be applied to different weather
- Solar thermal sensitive: It is recommended that before use, the cylinder is placed in the refrigerator for at least 0.5h, so that the cylinder is fully retracted, and the temperature of the opener can be adjusted by itself, and the rotation is 0.5 degrees
- Quality material: Greenhouse window opener kit Aluminum alloy material, the maximum window about 45 cm /17.72 inches. The maximum opening is 30℃/86℉
- Widely applicable: Widely used in high air volume of greenhouse Windows and greenhouse vents, maintain a good growth temperature, to prevent overheating of the greenhouse
- Maintenance: lubricate all moving parts with light oil after installation every spring, and lubricate as required in summer. Occasionally apply petroleum jelly or grease to the cylinder threads
