Collection: Recirculating Deep Water Culture Systems

The Under Current® is a modular RDWC hydroponic system that 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. With top-shelf results, these systems are ideal for artisanal batch cultivation and trusted by professional growers worldwide.

  • Shortest veg time for large yields
  • More smaller plants
  • Great for tents & huts
  • Ideal veg system for larger bloom system
  • 1-2 weeks vegetative growth time
  • 8 gallon grow modules
  • 18″ plant centers
  • 2-3′ plant height
36 products
  • Current Culture H2O Under Current Double Barrel 24 PRO Watering System ( 35 Gal )
    Regular price
    $13,999.99
    Sale price
    $13,999.99
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  • Current Culture H2O Under Current Double Barrel 32 PRO Watering System ( 35 Gal )
    Regular price
    $17,999.99
    Sale price
    $17,999.99
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  • Current Culture H2O Under Current Double Barrel 16 PRO Watering System ( 35 Gal )
    Regular price
    $10,999.99
    Sale price
    $10,999.99
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  • Current Culture H2O Under Current PRO Evolution 24 ( 35 Gal )
    Regular price
    $13,999.99
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    $13,999.99
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  • Current Culture H2O Under Current PRO Evolution 18 ( 35 Gal )
    Regular price
    $11,999.99
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    $11,999.99
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  • Current Culture H2O Under Current PRO Evolution 12 ( 35 Gal )
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    $9,199.99
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    $9,199.99
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  • Current Culture H2O Under Current PRO Evolution 9 ( 35 Gal )
    Regular price
    $7,199.99
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    $7,199.99
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  • Current Culture H2O Under Current Double Barrel 32XXL Watering System ( 13 Gal )
    Regular price
    $9,299.99
    Sale price
    $9,299.99
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  • Current Culture H2O Under Current Double Barrel 24XXL Watering System ( 13 Gal )
    Regular price
    $7,499.99
    Sale price
    $7,499.99
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  • Current Culture H2O Under Current Double Barrel 16XXL Watering System ( 13 Gal )
    Regular price
    $5,599.99
    Sale price
    $5,599.99
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  • Current Culture H2O Under Current Evolution 24XXL ( 13 Gal )
    Regular price
    $7,499.99
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    $7,499.99
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  • Current Culture H2O Under Current Evolution 18XXL ( 13 Gal )
    Regular price
    $5,999.99
    Sale price
    $5,999.99
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  • Current Culture H2O Under Current Evolution 12XXL ( 13 Gal )
    Regular price
    $4,499.99
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    $4,499.99
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  • Current Culture H2O Under Current Evolution 9XXL ( 13 Gal )
    Regular price
    $3,799.99
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    $3,799.99
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  • Current Culture H2O Under Current Double Barrel 32XL Watering System ( 13 Gal )
    Regular price
    $8,999.99
    Sale price
    $8,999.99
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  • Current Culture H2O Under Current Double Barrel 24XL Watering System ( 13 Gal )
    Regular price
    $7,299.99
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    $7,299.99
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  • Current Culture H2O Under Current Double Barrel 16XL Watering System ( 13 Gal )
    Regular price
    $5,499.99
    Sale price
    $5,499.99
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  • Current Culture H2O Under Current Evolution 24XL ( 13 Gal )
    Regular price
    $6,999.99
    Sale price
    $6,999.99
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  • Current Culture H2O Under Current Evolution 18XL ( 13 Gal )
    Regular price
    $5,799.99
    Sale price
    $5,799.99
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  • Current Culture H2O Under Current Evolution 12XL ( 13 Gal )
    Regular price
    $4,299.99
    Sale price
    $4,299.99
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  • Current Culture H2O Under Current Evolution 9XL ( 13 Gal )
    Regular price
    $3,599.99
    Sale price
    $3,599.99
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  • Current Culture H2O Under Current Double Barrel 32XL Watering System ( 8 Gal )
    Regular price
    $7,299.99
    Sale price
    $7,299.99
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  • Current Culture H2O Under Current Double Barrel 24XL Watering System ( 8 Gal )
    Regular price
    $5,899.99
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    $5,899.99
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  • Current Culture H2O Under Current Double Barrel 16XL Watering System ( 8 Gal )
    Regular price
    $4,299.99
    Sale price
    $4,299.99
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  • Current Culture H2O Under Current Double Barrel 32 Watering System ( 8 Gal )
    Regular price
    $6,999.99
    Sale price
    $6,999.99
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