The Under Current UCE18XXL13 is the perfect 18-site hydroponics system larger plants that need extra space for lateral growth. A variation of the standard 18-site Under Current Evolution system, the UCE18XXL13 offers larger 13-gallon growth modules as well as extra wide 40″ plant spacing. In addition to the features found in a simple DWC system, the UCE18XXL13 utilizes the patented CCH2O Sub-Current Culture system. This unique recirculating element provides constant circulation of plant nutrients and improved pH balance for outstanding growth and big harvests.
Easy and reliable, no timers, no guesswork. Reduces labor & maintenance.
Greenhouse grade heavy-duty construction, water level marks, recessed drain wells, raised body for thermal cooling, and a smooth interior for easy cleaning.
The Under Current system is the world’s only recirculating water culture hydroponic system to feature CCH2O’s patented Sub-Current Culture circulation method.
Sub-Current Culture technology utilizes negative water pressure to recirculate highly oxygenated nutrient solution through the plant’s root zone. This continuous fluid motion supercharges the nutrients with dissolved oxygen, creating hyper-aerobic conditions perfect for explosive plant growth. Constant 24/7 nutrient circulation ensures pH and EC levels are uniform throughout the entire system.
CCH2O unique water culture application is unprecedented in layout versatility and ease of use. The Under Current consistently delivers awe-inspiring yields for any sized application, from hobby to commercial greenhouse.
*Boneless Spacing Option: All Under Current systems are available in a “Boneless” configuration. Boneless systems ship WITHOUT straight sections of piping allowing for custom plant spacing.
*Remote Epicenter Option: All Under Current systems are available with a “Remote Epicenter” option. This allows growers to place the Epicenter (control module) on the outside of their grow space or tent.
*Please note: Both of the above-noted options require the separate purchase and installation of PVC pipe. If you are interested in these options, please call us at 1-866-710-GROW(4769) Monday-Friday, 9:00-5:00 Eastern to place your order, and we will be glad to assist.
NUMBER OF ROWS: 3
NUMBER OF SITES: 18
PLANT SPACING & MODULE SIZE: 40″ Centers / 13 Gallon
SYSTEM FOOTPRINT (FEET / METERS): 7’10″ x 20′10.5″ / 2.39m x 6.36m
TOTAL SYSTEM VOLUME (GALLONS / LITERS): 220 / 833
POWER USAGE (WATTS): 320
AIR PUMP SIZE(S) (LPM): (2)100 [Epi+8,10]
AERATION RATE (LPM PER GALLON): 0.91
WATER PUMP SIZE (GPH / LPH): 1200 / 4543
RECIRCULATION RATE (EXCHANGES PER HR.): 5.45
GROW AREA (FEET / METERS): 14′ x 28′ / 4.27m x 8.53m
LIGHTING (HORIZONTAL): 18 X 600W
LIGHTING (VERTICAL): 24 X 600W
WATER CHILLER SIZE* (HP): 1/2 – 1 HP
RESERVOIR (GALLONS / LITERS): 215 / 850
VEG TIME (WEEKS/IN.): 4-6 weeks / 30″-36″
*General recommendation. Check manufacturers specifications for proper chiller sizing.
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