Resources Investors Contact Us Support
View All Results
Clear all
Narrow Your Search - Search Within A Category
  • Products
    • Nutrients & Additives
      Nutrients & Additives Brands
      Hydrofarm House Brands
      All Nutrients & Additives Brands
      Ways to Shop
      Featured Brand
    • Lighting
    • Atmospheric Control
    • Hydroponics
    • Growing Media
      Growing Media Brands
      Hydrofarm House Brands
      All Growing Media Brands
      Ways to Shop
      Featured Brand
    • Plant Care/Pest & Disease Control
      Plant Care/Pest & Disease Control Brands
      Hydrofarm House Brands
      All Plant Care/Pest & Disease Control Brands
      Ways to Shop
      Featured Brand
    • Seed Starting/Cloning
      Seed Starting/Cloning Brands
      Hydrofarm House Brands
      All Seed Starting/Cloning Brands
      Ways to Shop
      Featured Brand
    • Harvest/Post-Harvest
      Harvest/Post-Harvest Brands
      Hydrofarm House Brands
      All Harvest/Post-Harvest Brands
      Ways to Shop
      Featured Brand
    • Garden Accessories
      Garden Accessories Brands
      Hydrofarm House Brands
      All Garden Accessories Brands
      Ways to Shop
      Featured Brand
    • Food Storage
      Food Storage Brands
      Hydrofarm House Brands
      All Food Storage Brands
      Ways to Shop
      Featured Brand
    • Water Management
      All Water Management Brands
      Ways to Shop
      Featured Brand
    • Brands
  • Our Brands 
    [{"Article":{"SeName":"all-brands","Name":"All Brands","Author":"parentjump=AllBrands&priority=3","ShortDescription":null,"PictureModel":{"ImageUrl":"/images/thumbs/default-image_187.png","ThumbImageUrl":null,"FullSizeImageUrl":"/images/default-image.png","Title":"Show details for All Brands","AlternateText":"Picture of All Brands","CustomProperties":{}},"DateUserTimeZone":"2022-09-28T09:22:58","NumberOfComments":0,"AllowComments":false,"Tags":[],"StartDateUtc":null,"EndDateUtc":null,"DateRangeForDisplay":"","DisplayAsPrivateNotificationMessage":false,"DownloadId":0,"ShowOnHomePage":false,"Id":201,"CustomProperties":{}},"Options":["parentjump","priority"]},{"Article":{"SeName":"preferred-distributed-brands","Name":"Preferred Distributed Brands","Author":"parentjump=PreferredBrands&priority=2","ShortDescription":null,"PictureModel":{"ImageUrl":"/images/thumbs/default-image_187.png","ThumbImageUrl":null,"FullSizeImageUrl":"/images/default-image.png","Title":"Show details for Preferred Distributed Brands","AlternateText":"Picture of Preferred Distributed Brands","CustomProperties":{}},"DateUserTimeZone":"2022-09-28T09:26:36","NumberOfComments":0,"AllowComments":false,"Tags":[],"StartDateUtc":null,"EndDateUtc":null,"DateRangeForDisplay":"","DisplayAsPrivateNotificationMessage":false,"DownloadId":0,"ShowOnHomePage":false,"Id":202,"CustomProperties":{}},"Options":["parentjump","priority"]},{"Article":{"SeName":"hydrofarm-brands-2","Name":"Hydrofarm Brands","Author":"parentjump=HydrofarmBrands&priority=1","ShortDescription":null,"PictureModel":{"ImageUrl":"/images/thumbs/default-image_187.png","ThumbImageUrl":null,"FullSizeImageUrl":"/images/default-image.png","Title":"Show details for Hydrofarm Brands","AlternateText":"Picture of Hydrofarm Brands","CustomProperties":{}},"DateUserTimeZone":"2022-09-28T09:27:49","NumberOfComments":0,"AllowComments":false,"Tags":[],"StartDateUtc":null,"EndDateUtc":null,"DateRangeForDisplay":"","DisplayAsPrivateNotificationMessage":false,"DownloadId":0,"ShowOnHomePage":false,"Id":203,"CustomProperties":{}},"Options":["parentjump","priority"]}]
  • Where To Buy
  • Commercial
  • About Us
  • Investors
  • Contact Us
  • Support
  • LOG IN
Picture for Active Air CO2 System with Timer, 0.2-2 cu ft per hour
Active Air

Active Air CO2 System with Timer, 0.2-2 cu ft per hour

SKU: COSYS
Option:
SRP $155.72
3 Year
Sizes / Options Details Specs More Info Related

Sizes / Options

Active Air CO2 System with Timer, 1-20 cubic ft per hour
Active Air CO2 System with Timer, 1-20 cubic ft per hour
SKU:
COSYS20
SRP: $164.98

Product Details

Deliver 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. 

Specs

Attribute name Attribute value
Barcodes 10638104200018 (GTIN)
638104200011 (UPC-A)
Dimensions 20.1L x 18.2W x 14.8H (CS)
8.8L x 9.8W x 6.9H (EA)
40.0L x 48.0W x 66.0H (PL)
Shipping Weight 4.3 lbs.

More Info

COSYS & COSYS20 Instructions 2016 Old Model COSYS & COSYS20 Instructions COSYS & COSYS20 Instructions 2013-2015

Related

Active Air CO2 System with Timer, 1-20 cubic ft per hour
Active Air CO2 System with Timer, 1-20 cubic ft per hour
SKU:
COSYS20
SRP: $164.98
Active Air CO2 tubing, 100', drilled
Active Air CO2 tubing, 100', drilled
SKU:
COTBDR
SRP: $54.94

Shop By Category

Other Ways To Shop

How To Buy

About Us

Resources Tools

Helpful Links

1510 Main St, Shoemakersville, PA 19555

1-800-634-9990

Visit Hydrofarm's Facebook page Visit Hydrofarm's YouTube page. Visit Hydrofarm's Instagram page

Are you a retailer or commercial grower?

Get started here to register for an account.

Get Started

Copyright 2025 by Hydrofarm. All Rights Reserved.