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Auto Vent Openers

We offer the best selection of quality made solar vent openers in the USA. All window openers open and close automatically based on air temperature and offer adjustable temperature settings. These are great solutions for automating side and roof vent windows on greenhouse kits and cold frames. Want more information about how they work and/or which vent opener is best for your application? Visit our Adding Automatic Vent Openers to your Greenhouse article. Dealer inquiries are welcome.

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Products 9-10 of 11
Bayliss MK7 Replacement Spacer Set bayliss, mk7, power, part, replacement, spare, spacer, set, vent, opener, rod, temperature, knurled, adjuster
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2 review(s)
Rating: 5.00
Availability: In Stock - Usually ships in 1 to 2 days.
Price: $9.95


Item #: 8040117 - Replacement Spacer Kit for the Bayliss MK7 automatic vent openers. Bayliss Spacer Set Includes 2 x long connector rod 1 x short connector rod 1 x long spacer 2 x short spacer 8 x plastic washer 4 x...
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Bayliss MK7 Spare Adjustment Knob bayliss, mk7, power, part, replacement, spare, knob, adjustment, vent, opener, rod, temperature, knurled, adjuster
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Rating: none
Availability: In Stock - Usually ships in 1 to 2 days.
Price: $6.95


Item #: 8040116 - The Bayliss MK7 adjustment knob, aslo referred to as the knurled adjuster, is used to adjust the opening and closing temperature of the Bayliss opener. Screwing it all the way off disables the vent...
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Products 9-10 of 11
ACF Greenhouses