Top positive review
Great replacement part
By A Bono on Reviewed in the United States on December 28, 2019
Went out on a limb after one of the units we purchased seemed screwed up out of the box (maybe it was us? not sure). This puppy works like a charm, easy to put in place, good as new.
Top critical review
3 people found this helpful
Not worth the money
By J. G. Singer on Reviewed in the United States on March 3, 2016
These cylinders don't work nearly as well as the original ones that came with the greenhouse vents. In the heat the original ones would open 10-12 inches. Set exactly the same way these open 4-5 inches at best, which is not enough venting for delicate crops. Either these are old stock (they only last a year or so), or they are just not the same quality. I'd rather pay a little more and find some that really work.
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