Alien RDWC Black Series 20 Litre – Recirculating Deep Water Culture System
*Water Tank and Air Pumps not included

Simply plugin and grow with this next generation RDWC system. Growing top-quality plants indoors has never been so effortless, combining our ground-breaking technology with the classic deep water culture method.
Recirculating Deep Water Culture is a method used to grow plants with roots submerged in a highly oxygenated nutrient solution.
By using the Alien RDWC hydroponic system, you can optimise maximum growth potential. The super oxygenated nutrient solution is constantly recirculating around the system. The pump creates a water current that draws the solution through the pots, mixing the nutrients. This current also delivers vital nutrients to the roots, optimising root health and increasing nutrient uptake efficiency. Importantly, PH and EC levels are maintained continuously due to the high volume of water contained in the system.
Available in various sizes and layouts, the Alien RDWC, recirculating deep water culture system provides fast vegetation time, high plant yield and reduced growing time.

The RDWC hydroponic system works using Air Rings to increase oxygen delivery to the plant’s roots submerged in the nutrient-rich water.
The use of a water chiller is highly recommended, maintaining the nutrient solution at 18-20C will help to keep oxygen levels higher than warm water and helps to prevent root infections and problems.
With a large volume of nutrient solution in the system, the only thing you need to do is maintain the PH and EC levels and plan your next crop.
Air pumps and Water Chillers are not included but a selection are available here and here.
Water tanks are not included.

In a Deep Water Culture system plants are normally raised in a 3 inch(75mm) rock wool block before being transplanted to the mesh pot, clay pebbles are added to the mesh pot, the block is placed on top and extra clay pebbles are placed around the side for support.
When the plants are transplanted to the system they will need to be water gently from the top until the roots have made there way into the nutrient solution.

The RWDC hydroponic system fittings are threaded and secured with rubber washers and nuts, making system installation and relocation easier. Heavy-duty clips situated on the sides of the pots elevate the airlines off the floor. All RDWC systems come with factory-fitted chiller fittings on the side of the header, making chiller installation simple.

Recommended Tank Size, Air Pumps, Chillers and more info  
number of pots water tank air requirement air pump water chiller minimum footprint excluding water tank maximum footprint Chiller model System volume
4 100l 40l/min 1x aco-9820 150l 1.1m x 0.7m 1.36m x 0.96m HC-150A 75l
6 100l 60l/min 1x aco-9820 150l 1.5m x 0.7m 1.7m x 0.96m HC-150A 135l
9 100l 90l/min 1x aco-9820, 1x aco-9810 300l 1.5m x 1.1m 1.7m x 1.55m HC-300A 165l
12 100l 120l/min 2x aco-9820 300l 1.5m x 1.47m 1.7m x 2.15m HC-300A 200l
15 250l 150l/min 2x aco-9820, 1x aco-9810 300l 2.25m x 1.1m 2.9m x 1.55m HC-300A 240l
16 250l 160l/min 3x aco-9820 300l 1.8m x 1.47m 2.3m x 2.15m HC-300A 260l
18 250l 180l/min 3x aco-9820 500l 2.6m x 1.1m 3.5m x 1.55m HC-500A 300l
21 250l 210l/min 4x aco-9820 500l 3m x 1.1m 4.1m x 1.55m HC-500A 330l
24 250l 240l/min 4x aco-9820 500l 2.6m x 1.47m 3.5m x 2.15m HC-500A 375l
28 250l 280l/min 4x aco-9820 1x aco-9810 500l 3m x 1.47m 4.1m x 2.15m HC-500A 435l
32 400l 320l/min 5x aco-9820 1x aco-9810 1000l 3.4m x 1.47m 4.7m x 2.15m HC-1000A 500l
36 400l 360l/min 6x aco-9820 1000l 3.75m x 1.47m 5.3m x 2.15m HC-1000A 555l
48 400l 480l/min 8x aco-9820 1000l 4.8m x 1.47m 6.9m x 2.15m HC-1000A 735l


  • Ideal for high yielding plants
  • Vigorous growth
  • Minimal waste products
  • Efficient water use
  • 20 Litre Pots
Weight N/A

28 Pots, 4 Pots, 6 Pots, 8 Pots, 9 Pots, 10 Pots, 12 Pots, 15 Pots, 16 Pots, 18 Pots, 21 Pots, 24 Pots, 32 Pots, 36 Pots, 48 Pots

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