Hydrofarm
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Hydrofarm Active Air COSYS20 COSYS CO2 with Timer
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Hydrofarm Active Air COSYS20 COSYS CO2 with Timer
The Active AirCO2 Tester Kit is an inexpensive alternative to costly electronic monitors.
Hydrofarm Active Air COSYS20 COSYS CO2 with Timer
Item #: 38199865

Hydrofarm Active Air COSYS20 COSYS CO2 with Timer

Item #: 38199865

BWP 515

Price Details

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The Active AirCO2 Tester Kit is an inexpensive alternative to costly electronic monitors.
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What Stands Out

Accurate CO2 Testing
The Hydrofarm COTEST Tester Kit provides precise CO2 measurement, ensuring optimal growth conditions for plants. Its accuracy is essential for cultivating a thriving indoor garden or greenhouse environment.
Timer Functionality
Equipped with a built-in timer, this kit allows users to automate the regulation of CO2 levels, promoting efficiency and ease of use while reducing the need for constant monitoring.
Durable Stainless Steel
Constructed from high-quality stainless steel, the tester kit is built to last, providing reliable performance in demanding environments while maintaining a sleek and professional appearance.

Product Details

Shop Hydrofarm Active Air COSYS20 COSYS CO2 with Timer online at a best price in Botswana. B081SKY5VX
AlarmAudible
Sensor TypePhotoelectric
Product StyleCO2 Test Kit
ColorStainless Steel
Item Weight0.01 Ounces (0.28 grams)
Enclosure MaterialStainless Steel
BrandHydrofarm
Model NumberCOTEST
Global Trade Identification Number00638104401111
ManufacturerHydrofarm, Inc.
UPC638104401111
Mfr Part NumberCOTEST
Unit Count1.0 Count
Item Type NameCOSYS CO2 with Timer
StyleCO2 Test Kit
MaterialStainless Steel

Who Should Buy?

Suitable For
  • Indoor Gardeners

    Perfect for indoor gardeners seeking to monitor and optimize CO2 levels for healthier plant growth and higher yields.

  • Commercial Grow Operations

    Ideal for commercial growers utilizing controlled environments to ensure optimal conditions for large-scale plant production.

  • Hydroponic Systems

    Great for hydroponic setups where precise CO2 management can boost nutrient uptake and plant performance significantly.

Not Suitable For
  • Beginner Growers

    May overwhelm novice growers who lack experience in managing CO2 levels and understanding the needs of their plants.

Product Description

Hydrofarm Active Air COSYS20 COSYS CO2 with Timer

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the purpose of the Hydrofarm COTBDR Active Air CO2 tubing?

    Answer: The Hydrofarm COTBDR Active Air CO2 tubing is designed to efficiently deliver carbon dioxide to plants, promoting healthy growth and enhancing yields. It's essential in hydroponic systems or indoor gardens where CO2 supplementation is needed for optimal photosynthesis. It helps create a controlled environment conducive for plant growth by ensuring they receive an adequate supply of CO2. Overall, this tubing is ideal for both commercial growers and hobbyists looking to maximize their plants' potential.
  • Question: What size is the Hydrofarm COTBDR CO2 tubing and what type of systems can it be used with?

    Answer: The Hydrofarm COTBDR CO2 tubing is 1/4 inches in diameter and comes in a length of 100 feet, making it versatile for various gardening setups. It can be effectively used in hydroponic systems, greenhouses, and grow rooms where CO2 control is critical. The flexibility of the tubing allows you to easily configure it to fit your specific growing environment, ensuring that it can meet the demands of various plants and systems efficiently.
  • Question: Is the tubing suitable for high-pressure CO2 systems?

    Answer: No, the Hydrofarm COTBDR Active Air CO2 tubing is not designed for high-pressure CO2 applications. It is ideally suited for low to moderate pressure use, typically found in standard CO2 setups for plant growth. Users should opt for specialized high-pressure tubing if their systems require it. This product is still highly effective in typical growing environments, delivering CO2 efficiently without the risk of bursting under pressure.
  • Question: How do I install the Hydrofarm COTBDR CO2 tubing in my grow setup?

    Answer: Installing the Hydrofarm COTBDR CO2 tubing is straightforward. First, connect one end of the tubing to the CO2 tank or regulator, ensuring a snug fit. Then, run the tubing throughout your growing area, delivering CO2 near the base of your plants. Be sure to secure the tubing in place to prevent kinks or disconnections. This setup allows even distribution of CO2, catering to the needs of your plants efficiently.
  • Question: Can I use this CO2 tubing outdoors?

    Answer: While the Hydrofarm COTBDR CO2 tubing can be used outdoors, it's important to consider environment exposure. Prolonged exposure to direct sunlight or extreme weather conditions may cause degradation over time. For outdoor applications, ensure that it’s shielded or protected wherever possible. This tubing is best suited for controlled environments like greenhouses, where it can be effectively utilized without the risks associated with outdoor exposure.
  • Question: Does the tubing come with any connectors or accessories?

    Answer: The Hydrofarm COTBDR CO2 tubing does not come with additional connectors or accessories. However, it is compatible with standard fittings for CO2 setups, allowing you to easily integrate it into existing systems. Depending on your setup, you might need to purchase connectors or adapters separately to ensure a proper fit. This way, you can customize your installation according to your specific requirements, making it an adaptable option for growing environments.
  • Question: What are the benefits of using drilled tubing for CO2 delivery?

    Answer: Drilled tubing, like the Hydrofarm COTBDR, offers the advantage of evenly distributing CO2 to plants. The drilled holes ensure that CO2 is released slowly and consistently, allowing for better absorption by plants. This method promotes healthier and faster growth, particularly in high-density planting situations. Using drilled tubing is especially beneficial if you’re looking to optimize your growing conditions and achieve maximum yields.
  • Question: Is the tubing flexible enough for curved installations?

    Answer: Yes, the Hydrofarm COTBDR CO2 tubing is flexible enough to accommodate curved installations, making it ideal for various types of grow spaces. You can easily shape it around corners and obstacles without compromising functionality. Its flexibility provides versatility, allowing you to design an efficient CO2 delivery system that fits the unique layout of your growing area, whether it’s in a small indoor setup or a larger greenhouse.
  • Question: What type of environment is best for using this tubing?

    Answer: The best environments for utilizing the Hydrofarm COTBDR CO2 tubing are those requiring regulated conditions, such as indoor grow rooms or greenhouses. These controlled spaces allow for optimal results in CO2 supplementation, which is crucial for high-yield plants. In these environments, increasing carbon dioxide levels can significantly enhance plant growth and development, making this tubing a vital component in ensuring your plants thrive.
  • Question: Where can I buy the Hydrofarm COTBDR Active Air 100' drilled 1/4" CO2 tubing?

    Answer: You can purchase the Hydrofarm COTBDR Active Air CO2 tubing on Ubuy in Botswana. Ubuy offers a convenient platform for sourcing this product, providing a smooth purchasing experience and access to customer support. It is a great choice for those needing reliable gardening supplies, ensuring you receive what you need for your plant growth projects with confidence.

Hydrofarm Indoor Air Quality Meters COTEST Editorial Review

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12 June 2026 · via Trustpilot
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Features & Benefits

  • Affordable solution for monitoring CO2 levels.
  • Helps eliminate waste and optimize plant growth.
  • User-friendly design with included instructions.
  • High-quality manufacturing by Hydrofarm, a trusted name for over 40 years.
  • Compact and lightweight for easy handling.
  • Essential for all growers seeking better results.

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