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Description
Aura Systems 4 Burner CO2 Generator, Natural GasElevated atmospheric CO2 levels show remarkable increases in plant growth productivity, and creating these elevated levels in your grow room is simply the easiest way to accelerate plant growth. Autopilot CO2 generators provide and maintain the carbon dioxide levels needed to meet maximum growing potential, and operate for only pennies a day. These highly reliable CO2 generators feature powder coated steel enclosures that resist moisture, rust and
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.8 ★★★★★
Based on 102 reviews
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Product Reviews
★★★★★ 5
Very Useful
Format: Paperback
I used these for my A+ exams and I didn’t really end up reading the material. I more so used them for their practice exams. That’s only because there’s a lot of information to digest and I was in a rush to take the exams. I still passed so I find that they are well formatted. The questions imo needs to be read more throughly than the exam questions themselves.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2024
★★★★★ 5
Amazing study tool
Format: Paperback
Perfect for the exam goes along with the actual course 👌
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2025
★★★★★ 5
Details I mok
Format: Paperback
I like the explanations, but I don’t like small print, particularly for older people
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2023
★★★★★ 1
31 pages were missing from the test book
31 pages were missing from the test book
Pages 453 to 484 were missing (see attached photo)
It’s very hard to prepare for a comprehensive certification examination studying from an incomplete text. FYI, the book was purchased new and not damaged, it was bound that way
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Reviewed in the United States on February 18, 2023
★★★★★ 3
Kindle version does not come with tests/flashcards
I did not know this beforehand. They hid this fact waaaay down below and added it in below the details and neglected to add it to the main description at the top. Be advised.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2022
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