• 7540 E Colfax Ave Denver, CO 80220
  • 720-328-2127
  • 10AM–6PM


Hydroponic Retailer

Number #1

Supplier in Denver

Leading Provider

Of Hydroponic Equipment
Hydroponic & Organic
Growth Experts

Our products are proven & tested
by industry standards.

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Our team at Grofax is always working to bring you the newest innovations and technology in the industry. View Product List


Growing Accessories

Useful tools for growing your plants.


Watery Supply

Complete selection of water delivery systems.


Environmental Controls

Temperature, humidity, heating, cooling & more.



For healthy growth of the plants.


Growing Media

The complete hydroponic growing systems.



Perfect for your indoor gardening needs.

About Grofax

Grofax is a household name in Colorado as the largest chain of premier hydroponic systems and supplies. Each location offers a full selection of nutrients, gardening tools, growing media, lighting and more for every growing style. You can always count on the informative and educational services for which Grofax is famous, and trust that Grofax includes only products approved by the Department of Agriculture and which have passed EPA guidelines. Good education, great products, and state of the art equipment – get the grow facts with The Grofax!

“We are the one stop shop for all your gardening needs. We will guide you to your success. “


We’re always interested in new projects, big or small. Please don’t hesitate to get in touch with us regarding your project.

If you want to contact us about any issue please call 720-328-2127 or send us an e-mail. If you would like to submit a proposal for consideration simply submit a quote.