The Under Current® Recirculating Deep Water Culture (RDWC) System 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.
The Under Current® is the cornerstone of the CCH2O Proven Production Approach when used with Cultured Solutions® Nutrients and the CCH2O Nutrient Dosing System.
Yield More with Less. Reduce Plant Counts. More Production Per Plant.
Get Your Weight
Accelerated Growth Rates. Cut Veg Times. Heavy Yields = Heavy Profits.
Take A Vacation
Easy and Reliable. No Timers, No Guesswork. Reduced Labor & Maintenance.
Optimal Resin Output. Strong Terpene Profiles. Tests Clean.
Ideal for Craft Cultivation. Trusted by Professional Growers Worldwide.
2019 Under Current® Updates
CCH2O Multi Mod
The Most Versatile Hydroponic Growth Module Available. Recessed Drain Well for Full System Drain. Raised Body for Thermal Cooling. Greenhouse Grade Heavy-Duty Construction. Water Level Marks and Smooth Interior for Easy Cleaning.
CCH2O Add Back Kit
Easily Add Back Nutrients and pH Adjustors to Your System Without Shocking Plants.
High-Flow Aeration Manifold
Even Distribution with More Air to Plants. Clean & Organized.
Air Pump Bank with CCH2O Air Flow Regulator
Easily Calibrate and Standardize Aeration Rates. Removes Air Pumps From Grow Space.
5.5” CCH2O Lids & Net Pots
Less Media. Easily Transfer Plants from Veg to Bloom.
Wider Center Aisle, 1” Return Hose & Bottom Drain Manifold
More Room Between Rows. High-Flow Circulation. Lower Volume to Prime Pump.
UC Drain Out Kit
Utilizes the CCH2O Drop Tee to Connect the Multi Mod Growth Modules. Provides A Centralized Point for Evacuation When Performing a Full System Drain.
Delivery over $149
We understand the importance of privacy to many of our customers. All orders placed on Growbuds are shipped in plain boxes without explicit identifying marks.
Free, Fast Shipping
All continental US orders over $99 qualify for free shipping.
Between 1 and 5 business days, depending on your location.
Easy Returns for up to 90 days
Depending on the brand.
Please refer to our Shipping & Returns policy page for more detailed information.