Under Current XXL13 - Current Culture

★★★★★ 4.2 91 reviews

US$560.40
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US$560.40
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Free shipping Free 30-day returns

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Product details

Management number 250468268 Release Date 2026/09/17 List Price US$560.40 Model Number 250468268
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The Under Current™ XXL13

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 ™ XXL13 Includes

13 gallon growth modules, 3" manifold, 3” UC Spin Tight Bulkheads, CCH2O 8" custom molded Lids with Port Hole, CCH2O 8" custom molded Net Pots, Danner Mag-Drive™ Return Pump, Air Force Pro ™ 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 and 1-Year Warranty.

Benefits of using the Under Current ™

  • Increased Nutrient Efficiency
  • 50+ System Configurations
  • Expandable Modular Design
  • Designed to Accommodate Any H.I.D. Lighting Layout
  • Hand Crafted in California
  • Commercial Grade
  • Low Power Consumption
  • pH And EC/TDS Uniform Throughout Entire System
  • Conserves Water
  • Larger Yields with Fewer Plants
  • Less Frequent Nutrient Change Outs
  • Easily Adaptable To Dosers, Top-Off Reservoirs & Chillers
  • Includes Professional Quality Air & Water Pumps
  • Expert Grower Support
UNDER CURRENT XXL13 UC4XXL13 UC6XXL13 UC8XXL13 UC12XXL13 UC16XXL13
SIZE (INCHES) 54 x 84 54 x 125 54 x 168 54 x 252 54 x 336
FULL SYSTEM VOLUME (GALLONS) 55 80 100 145 190
POWER USAGE (WATTS) 75 145 160 213 250
AIR PUMP(S) AFP-40 AFP-60 AFP-80 (1)AFP-15, (1)AFP-80 (1)AFP-40, (1)AFP-80
WATER PUMP(S) MAG350 MAG500 MAG700 MAG950 MAG1200
RECIRCULATION TURNOVER RATE PER HR. 6.3 6.2 7 6.5 6.3
RECOMMENDED LIGHTING (VERTICAL) 5 X 600W 8 X 600W 11 X 600W 17 X 600W 23 X 600W
RECOMMENDED CHILLER* 1/10 - 1/6 HP 1/4 - 1/2 HP 1/4 - 1/2 HP 1/4 - 1/2 HP 1/2 - 1 HP
RECOMMENDED RESERVOIR (GALLONS) 60 85 110 150 200
SHIPPING WEIGHT (LBS.) 50 60 80 90 120
SHIPPING BOX SIZES (2)16x18x48 (2)16x18x48 (3)16x18x48 (3)16x18x48 (4)16x18x48

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