🌿 Product Description
The Under Current® UCXL13 RDWC System is the industry gold standard for medium-less hydroponics. Built around a 13-gallon growth module with 30" plant spacing, this system harnesses the power of Recirculating Deep Water Culture (RDWC) to deliver record-setting yields and pristine plant health.
Developed and patented by Current Culture H2O, the Under Current® is recognized globally for producing superior fruits, flowers, and essential oil profiles. It uses negative water pressure to continuously circulate a highly oxygenated nutrient solution through the root zone—no timers required. The result: explosive root growth, consistent pH/EC levels, and uniform nutrient uptake 24/7.
Perfect for residential growers, professional cultivators, and commercial operations, the UCXL13 maximizes limited plant counts and is ideal for mother plants or mainline production.
🔧 Key Features
- 13-Gallon XL Growth Modules – Extra root zone space for healthier, larger plants
- 30" Plant Spacing – Ideal for robust vegetative development and canopy control
- Recirculating Deep Water Culture (RDWC) – Delivers oxygen-rich solution to all plants equally
- Negative Pressure Circulation – Ensures even flow, pH stability, and nutrient distribution
- Tool-Free Connection System – Fast, leak-free installation and maintenance
- No Timers Required – 24/7 automated aeration and nutrient circulation
- BPA-Free & Food-Grade Materials – Safe for organic and consumable crops
- Made in California – Engineered and manufactured by Current Culture H2O
📏 Size Configurations & Layout Options
- Available in various site counts and row layouts to suit any space:
- 2-ROW: 4-SITE, 6-SITE, 8-SITE, 12-SITE, 16-SITE
- 3-ROW: 9-SITE, 12-SITE, 18-SITE, 24-SITE
- 4-ROW: 16-SITE, 24-SITE, 32-SITE
- Need help choosing the best layout? Contact us for a custom quote tailored to your greenhouse or grow room.
Under Current Specification Sheet
🛠️ Assembly, Care & Warranty
- Setup: Simple installation with modular design—no tools needed
- Care: Periodically clean lines, diffusers, and air stones to maintain peak efficiency
- Limited 3-Year Warranty: Covers components manufactured by Current Culture H2O. Air and water pumps are covered under their respective manufacturers.
- Warranty Exclusions Include:
- Hoses, net pots, seals, and other consumables
- Damage from improper installation, force, misuse, or acts of nature
- Use with unauthorized components voids warranty
- For full warranty and return details visit our Return Policy
🌱 Why Choose Under Current® UCXL13?
- Whether you're starting a mother plant program, scaling your greenhouse, or seeking record-setting yields, the UCXL13 system delivers professional results in a scalable, low-maintenance format.
- Optional accessories sold separately. For bulk orders or layout planning, email us at support@arcadiayard.com.
✨ Returns & Shipping Summary:
We accept returns within 30 days of delivery on unused, unassembled items in their original packaging. Approved returns are subject to a 10% restocking fee, and refunds are processed within 14 days after the item is received and inspected. Customers are responsible for return shipping unless the item arrives damaged, defective, or incorrect.
Orders are processed in 1–2 business days and ship free within the United States. Standard delivery takes 10–14 business days, and tracking information is provided once your order ships. If your item arrives damaged, please refuse delivery and notify us within 48 hours to ensure eligibility for a replacement or refund.