Current Culture Under Current Double Barrel 32 XL

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Current CultureSKU: CC-UCDB32XL

Sale price$ 7,699.95 Regular price$ 8,557.99
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Current Culture Under Current Double Barrel 32 XL

What is the Under Current System?

The Under Current system is the world’s only recirculating water culture hydroponic system to feature the patented Sub-Current Culture circulation method. The Under Current is cornerstone of the CCH2O Proven Production Approach when used with Cultured Solutions® Nutrients and the CCH2O Nutrient Dosing System.

Sub-Current Culture (SCC) 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.

This 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.

This System Includes

  • CCH2O Multi Mod Growth Modules with Drain Well
  • CCH2O 5.5″ Heavy Duty White Lids with Port Hole
  • CCH2O 5.5″ Heavy Duty Net Pots
  • CCH2O Easy Clean Manifolds with UC Spin-Tight Bulkheads
  • High Flow Aeration Manifold
  • Air Pump Bank with CCH2O Air Flow Regulator
  • Premium Linear Air Pump(s)
  • Danner Mag-Drive Return Pump with 1″ Return Hose
  • CCH2O Sintered Air Stone
  • CCH2O Drain Out Kit
  • Adjustable Float Valve with Reservoir Adapter Kit
  • Cultured Solutions XS Growers Pack
  • 3-Year Limited Warranty.

Critical components of the Current Culture UC System

The best just got better! The Current Culture UC Systems now come with all of these compents included so you can worry less and harvest more!

  1. CCH2O Multi Mod
    • CCH2O Drop Tee
  2. UC Drain Out Kit
  3. High-flow Aeration Manifold
  4. Air Pump Bank with CCH2O Air Flow Regulator
  5. 5.5” CCH2O Lids & Net Pots
  6. 1" Return Hose & Bottom Drain Manifold

Below we will go into a little bit of detail on these critical components so you can learn the Current Culture UC System inside and out!

  1. CCH2O Multi Mod

The most versatile hydroponic growth module available

  • Exterior Water Level Marks
  • Recessed Drain Well for Full Drain Out
  • Greenhouse Grade Heavy-Duty Construction
  • Smooth Interior for Easy Cleaning
  • Raised Body for Thermal Cooking

The CCH2O Drop Tee work with the multi mod bottom drain design part of the drain out kit. The patent-pending design of the Drop Tee collects solution from the lowest point!

  1. Drain Out Kit

Full system drain removes 100% of solution with an extremely fast flush and fill. The 1" hose connects to CCH2O Drop Tees for quick system evacuation.

  1. High Flow Aeration Manifold

Pre-cut sections make installation easier

  • Even Distribution
  • More Air to Plants
  • Clean & Organized
  1. Air Pump Bank with CCH2O Air Flow Regulator

Easily calibrate and standardize aeration rates. Measure the air volume in inches of water volume column witht he air flow regulator

  1. CCH2O Lids & Net Pots

Less Media. Easily Transfer Plants from Veg to Bloom.

  1. 1" Return Hose & Bottom Drain Manifold
  • More room between rows
  • High-flow circulation
  • Lower volume to prime pump

Wider center aisle on all Double Barrel Systems.

Order Confirmation

As soon as your order is placed, an order confirmation will be sent to the email address you used to place the order. This means we have received your order and payment. Payment is captured as soon as the order is placed. In rare cases, if the product is on backorder or unavailable, we will contact you and ask if you would like to wait for the product to become available, switch your product, or have your payment refunded. If the item is available for shipment we will submit the order for processing and arrange shipment. Please see current estimated lead times on the product page for each product.


Most products ship within 1 to 3 business days. Some items might take longer as they are delivered from our warehouse in Vancouver. As soon as we receive your tracking number, we will send it over to you.

Free Shipping

Free shipping is available across all provinces throughout Canada for orders over 149$.

International Orders

Nearly all of our brands can be shipped internationally using FedEx, UPS, USPS, DHL or other couriers. Most quotes can be obtained at checkout. If not, you can email us at for some more information on shipment. Items shipped internationally from the USA may have VAT, duties, taxes, and/or local charges due at delivery. These charges are the responsibility of the customer and not Canada Grow Supplies Inc.


If you need to cancel your order, we recommend reaching out to us ASAP. We charge a 2.9% (credit card), 3.5% (PayPal), 4.0% (PayPal International), 4.1% (American Express), or 6.5% (Shop Pay Installments or Sezzle) order cancellation fee after the order was received. We can accommodate most requests, but due to the different time zones and schedules that our warehouses ship from, sometimes the cancellation request may not reach the warehouse in time before the product ships. Once the item has been arranged to ship or has shipped, the package will be treated like a 'return' and is subject to ship-back fees and restocking fees. If you purchased 'Route Package Protection', this can not be refunded after the order has shipped.


In order to make sure you are completely satisfied, we can send you a return label within 14 days of receiving the order. This is to guarantee that you are happy with the product. Some products might require a 10-25% restocking fee. Please visit our full return policy.

Why Canada Grow Supplies?

We’re glad you clicked here. It means you’d like some reassurance and we totally understand that.

1. We’ve had thousands of shipped orders and satisfied customers.

We started our business in 2020 with the intention of creating a one-stop shop for growing supplies without letting customers wait for their orders. We saw the potential to serve customers of this industry way better than they’ve been treated in the past.

2. We’re a small, Canadian, family-owned business.

Our small team overlooks every customer and their orders to ensure they are satisfied with their products. We answer the phone and website chat, and if we don’t, we get back to you within 6 hours or less! We even throw in some freebies at random.

3. Free Discreet Shipping Available in Canada

We offer free shipping on all orders over 149$ Canada-wide. Many companies have a weight limit for free shipping, we don’t!

4. 100% Lowest Price on the Market - Price Match Guarantee

We keep the best prices on the market at all times. If the price respects the companies’ lowest retail price, we will definitely price-match any other Canadian website.

5. Reliable International Shipping

Nearly all of our brands can be shipped internationally using FedEx, UPS, USPS, DHL or similar couriers. Go through the checkout process to receive a shipping quote or contact us if a shipping quote is not available at checkout.

6. Easy financing and interest-free payments

Finance your purchase within minutes without paying interest!

Sezzle: Buy what you want today and pay for it over four installments, interest-free. Look for the Sezzle button at checkout. Get approved up to $2,500.

7. We are authorized resellers with manufacturer’s warranty

You will buy confidently from us since only sell new, official products (no used items or clones). All warranties are new are 100% honored through the respective manufacturer.

8. Safe, Secure and Discreet Transactions

We accept major credit cards and debit cards, PayPal, Google Pay, Apple Pay, Sezzle, bank transfers, and money orders. All card payments are processed through our encrypted SSL security processing system. Your identity is always protected.

9. Hassle-free returns

Just in case your purchase was not up to your standards, we offer return shipping if you are not 100% satisfied for any reason

10. Route Package Protection

Adding Route Package Protection to your order at checkout means that your order is protected against being lost, damaged, or stolen. In the unfortunate instance that you experience one of these inconveniences, you can report an issue with Route and they will work with you to make sure you get the resolution you prefer.

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