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Current Culture H2O - Under Current UC6XL | DWC System | Complete Hydroponics

Made in USA | Commercially Scalable | Automation Ready

SKU: HSTM21102
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Current Cultures' UC 6 is perfect for the grower that is looking for a 6-site deep water culture hydroponic system. With different growth module sizes, plant spacing, and lid options the under current can be configured in a number of ways. Depending on your configurations the UC 6 will have a footprint between 2ft 10.5in x 6ft 10.5in and 4ft 6in x 10ft 10.5in, and a total system volume of 50 gallons to 80 gallons. See our Add On Components for important tools that will maximize your garden's production and ensure its health. If you have any questions about this system give us a call and one of our experienced growers will answer all of your questions.

The Under Current® features the patented Sub-Current Culture® circulation method. This high-performance water culture system is unmatched in efficiency, layout versatility and ease of use. The Under Current® utilizes negative water pressure to recirculate oxygenated nutrient solution through the plant’s root zone ensuring pH and EC levels are uniform throughout the entire system.


Under Current 6 XL

  • PLANT SPACING & MODULE SIZE: 25″ Centers / 8 Gallon


  • SYSTEM FOOTPRINT (FEET / METERS): 3’2.5" x 8’0.5" / .98m x 2.45m
  • WATER CHILLER SIZE* (HP): 1/10 – 1/6 HP
  • VEG TIME (WEEKS/IN.): 2-3 weeks / 18"-24"

*General Recommendation – Check Manufacturers Specifications for proper chiller sizing.

In The Box

  • *NEW* CCH2O Multi Mod Growth Modules with Drain Well
  • CCH2O 5.5″ Heavy Duty White Lids with Port Hole
  • CCH2O 5.5″ Heavy Duty Net Pots
  • CCH2O Easy Clean Manifolds with UC Spin-Tight Bulkheads
  • *NEW* CCH2O Add-Back Kit
  • *NEW* High Flow Aeration Manifold
  • *NEW* Air Pump Bank with CCH2O Air Flow Regulator
  • Premium Linear Air Pump(s)
  • Danner Mag-Drive™ Return Pump with 1″ Return Hose
  • Drain Out Kit
  • Adjustable Float Valve with Reservoir Adapter Kit
  • Cultured Solutions™ XS Growers Pack

Increased Yields

  • Efficient nutrient uptake accelerates growth rates and increases flower production.

More Crop Turns

  • Achieve 5-6+ harvests per year with reduced veg time, rapid transplanting, and simple sanitization protocols.

Proven Nutrient Formula

  • The Under Current and Cultured Solution nutrients are a proven production approach trusted by professional growers.

Reduced Labor and Maintenance

  • Lower nutrient concentrations and consistent pH/EC levels decrease nutrient change outs and flushing.

Automation Ready

  • Constant recirculation makes it easy to automate fill / drain cycles and add nutrient monitoring, dosing and fertigation.

Layout Versatility

  • Unlimited system configurations to outfit any cultivation space. 2, 3 and 4 row options. Up to 80 sites.

Commercially Scalable

  • Centralize aeration, fertigation and water management for precise system control and visibility. Design services available.

Modular Design

  • Interchangeable components allow you to effortlessly add plant sites or change your system configuration as your operation grows.

Professional Construction

  • Durable greenhouse grade components designed to last in harsh cultivation environments.

Patented Design

  • Thoughtful design with multiple patents: 9 , 277, 696, 9, 258, 953, 8, 915, 016, 8, 726, 568, D858, 345, D886, 246.