Current Culture - Under Current XL UCXL System

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$1,389.95 $1,250.95
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The Under Current ™ XL

Under Current XL models have 25" Plant Centers (the distance from the center of one plant to the center of the plant next to it) and 8 gallon Growth Modules that allow 2-4 ft of growth. The UC XL models come in a 2 row format that are great for rectangular & residential spaces, and should be used with two rows of horizontal lamps.

The Under Current™ is the worlds first re-circulating Water Culture Hydroponic System featuring our Patent Pending Sub-Current Culture™ Method.  This innovative application circulates literally hundreds of gallons of solution per hour beneath plant roots.

The Under Current™ supercharges the solution with dissolved oxygen, creating a hyper aerobic condition. Constant, 24/7 nutrient circulation ensures that pH and EC are uniform throughout the entire system. An inline Danner Mag-Drive pump provides peripheral negative pressure by thrusting nutrients back to a return module (Epicenter). From this point the solution is drawn from module to subsequent module, evoking perpetual fluid motion.

The Under Current ™ XL Includes

  • 8 gallon "Blackout Series" growth modules

  • 2" manifold

  • 2” UC Spin Tight Bulkheads

  • CCH2O 8" custom molded Lids with Port Hole

  • CCH2O 8" custom molded Net Pots

  • Danner Mag-Drive™ Return Pump

  • High Performance Linear Air Pump

  • 9” Air Diffuser Disc

  • Medium Round Air Stones

  • Air Distribution Manifold

  • Air Hose

  • In-Line Filter

  • Adjustable Float Valve with Reservoir Adapter Kit

  • Drain Valve

  • Chiller Adapter

  • Garden Hose Drain Adapter

  • Cultured Solutions™ VEG A/B

  • 1-Year Warranty


Why You Should Choose the Under Current ™

  • Nutrient Efficiency is Raised
  • Configure Your System Over 50 Ways!
  • Expansible Modular Design
  • Constructed to Take-In any High-Intensity Discharge Lamps
  • Made in the U.S.A.
  • Professional Quality
  • Conserves Power
  • Keeps pH And EC/TDS Uniformity Through the Whole System
  • Designed to Save Water
  • Allows Bigger Yields from Less Crop
  • Nutrients Need to be Changed Less Often
  • Change with Ease To Dosers, Top-Off Reservoirs & Chillers
  • Comes with High Quality Water & Air Pumps
  • Top Notch Grower Support From Hydroponic Experts


1 Review Hide Reviews Show Reviews

  • Plant Perfect

    Posted by Unknown on 21st Feb 2014

    Fast shipping and easy to setup, my plants are thriving with this setup!

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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