Automatic Vent Opener

Automatic Vent Opener

Item # 11-229
$69.95
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Heat-Sensing Greenhouse Vent Opener Works Without Electricity

This device opens and closes your greenhouse vent panels for reliable climate control even when you’re away! No electrical power is required. Fluid-filled cylinders expand in warm temperatures. You can raise or lower the temperature setting with a simple twist of the cylinder.

  • Steel with paraffin in the vent opener cylinder
  • Rated to lift up to 15 lbs.
  • Depending upon installation, this vent opener will open a vent 12-18"
  • The opening temperature can be adjusted from approx. 65° to 80° F
  • 12" L; weighs 1/2 lb.
 
  • Sorry, no shipments to AA,AE,AF,AK,AP,GU,HI,PR,VI

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