Active Air-Timer

Marsoni

M251S

$123.59

Get it in 3 business days with 1 day shipping. Friday, May 29

Active Air-TimerDeliver growth boosting CO2 with our user friendly, easy to operate system. With its programmable timer, it will automatically maintain ideal CO2 levels for optimum growth. For small to medium size areas, select the COSYS; for larger than 10' x 10' areas, select the COSYS20. To use Hydrofarm's CO2 Flow Rate Calculator, click HERE NOTE: Current COSYS & COSYS20 now come equipped with a black rubber O ring that has replaced the white plastic washer.

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Your Active Air-Timer orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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Sent this with my daughter to preschool application was very easy for the teachers. Overall the stick was a little bit smaller than expected but it goes a long ways. Was really happy with the overall ingredients in this product versus others. Well worth the money and my daughter was more open to having it because of the application being in a stick.

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Reviewed in the United States on July 9, 2025

Verified Purchase

sarah

Fort Morgan, US

★★★★★ 3

White cast

Sun protection factor: 50 Sun Protection Factor (SPF), Size: 0.49 Ounce (Pack of 1)

I like having sun screen sticks like this to have the kids carry around in backpacks at summer camps/sports practice so they can re apply - but this one goes on white and is more of a challenge for the kids to get all rubbed in. Wont purchase again

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Reviewed in the United States on May 26, 2026

Verified Purchase

HappyShopper

Boise, US

★★★★★ 5

Would recommend.

Sun protection factor: 50 Sun Protection Factor (SPF), Size: 0.49 Ounce (Pack of 1)

Easy to use and the perfect size for a childs face. Of course it's a plus that Moana is on it, but not necessary. Works good.

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Reviewed in the United States on June 9, 2026

Verified Purchase

Taylor

Omaha, US

★★★★★ 5

Great travel size sunscreen

Sun protection factor: 50 Sun Protection Factor (SPF), Size: 0.49 Ounce (Pack of 1), Sun protection factor: 50 Sun Protection Factor (SPF), Size: 0.49 Ounce (Pack of 1)

Great size to keep in diaper bag for random park trips!

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Reviewed in the United States on April 8, 2026