Best Selling Two Springs Automatic Sliding Window Opener for Your Greenhouse

HX-T312-1 Double Spring Bracket

Product Description:

Huixin window opener is an ideal way to provide extra ventilation for your greenhouse during hot weather. The temperature controlled cylinder activates the vent opener when the heat reaches a certain level, and closes the vent again when the temperature drops. In this way, the vent opener ensures your plants have sufficient airflow throughout the day. It is a universal fit, which means it is suitable for all aluminium frame greenhouses. Its aluminium & stainless steel construction means that it is durable and weather resistant.

Product Features: 

• Temperature controlled sensor cylinder enables roof vents to be opened and closed at the appropriate time, ensuring sufficient airflow

• Made from aluminium & stainless steel - durable and weather resistant

• Fully adjustable to open between 15-25°C

Start Open at 25°C (77°F); Star Close at 15°C (60°F) 

• Max open temperature: 38°C/100°F

• Max open distance: 45cm/18''

• Perfect for windows or vents weight up to: 7kg/15lbs

• Universal fit - suitable for any aluminium frame greenhouse

• Mechanical system activated by heat - no batteries or electricity needed, which means no running costs

• Automatic response to weather changes - controls the temperature without requiring your attention

• Easy to install using detailed instructions included

 Standard Packing:

 Automatic Louver Opener