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4 Pot RDWC Pro 75CM 55LTR



  • Massive 4 inch pipe with fittings
  • Customised for your grow space
  • High blow Air Pumps
  • Increased Growth Rates
  • Higher Yield from fewer plants
  • Explosive Root Growth
  • Ripstop Tank Included
  • Maximum Oxygen Saturation from Norres PRO-Air Diffuser

  • Alien-Hydroponics-Systems-Pro-Air
  • Alien-Hydroponics-Systems-Spanner
  • Alien-Hydroponics-Systems-Spin-Tight
  • Alien-Hydroponics-Systems-Tank
  • Header-chiller
  • PRO-4-RDWC-award
  • Pro-lid
  • Pro-outlet
  • Pro-recirculation-web
  • RDWC-PRO-4-55LTR-75CM-300x
  • pro-header
  • solo-lid
  • xp_100x_350_4c1



Kit Includes:

  • 4 x 55ltr Pots
  • 100ltr Tank - Out of stock
  • XP40 Air Pump
  • 4 x Lids
  • 4 x Net Pots
  • Inlet manifold
  • Outlet manifold
  • 2 x Joints
  • Ball Valve & Filter
  • 2 x Double Air-Line Connectors
  • 1 x 13mm Blank
  • 1 x 13mm Tee
  • 4 x Air Stones
  • 3 Meters x 13mm Pipe
  • 6 Meters x 4mm Pipe
  • 4 Meters x 19mm Pipe
  • Spanner
  • Instructions
  • Header Pot complete


  • System Footprint: 175 x 115cm
  • System Volume: 220ltr
  • Tank Volume: 100ltr
  • Power Usage: 46w
  • Air Pump Size: 40lpm
  • Water Pump Size: 1000lph



Introducing the new RDWC PRO Systems. We are using the same proven negative pressure re-circulating method as our other RDWC systems yet taken this technology a step further by super sizing to a choice of 34 or 55 litre pots and a massive 4 inch pipe work. These increased sizes result in increased root space and unrestricted recirculation which maximises the potential for the largest yielding plants to be grown hydroponically.

The many benefits of using RDWC PRO


• Easy to set up, break down and expand

• Very little medium used

• Easy to drain down

• Chiller Ready

Greater Yield Potential

• Increased growth rates produce larger overall plants and drastically reduce vegetative times

• Higher productivity with fewer plants

• 34 or 55 litre pots for increased root space

• 4 inch pipe work for unrestricted flow

Increased Efficiency

• High levels of oxygen and constant circulation optimize plants nutrient uptake capacity

• Huge volume of nutrient solution means stable pH, EC/TDS and less change outs.

• Maximum oxygen saturation from Norres Pro-Air diffuser.

How did we achieve maximum oxygen levels?

To achieve this we incorporated a Norres Pro-Air diffuser in the header pot. This diffuser creates micro bubbles which means the oxygen is suspended in the solution for a longer period of time compared to an air stone.

This diffuser cannot be compared to Chinese diffusers which are currently used in other systems.

Their rubber membranes stretch which can therefore produce larger bubbles, react with the nutrients and additives causing slime to build up in the system. The Norres Pro-Air membrane is a clear high durability premium ether-polyurethane which does not stretch or react with nutrients or additives.


Our preferred payment method is credit or debit card. We also accept Paypal, bank transfers and cheques. Cheques must be cleared before we can ship goods. 


We take great care packaging every item to ensure your items arrive safely. All items come in plain packaging. Once your order has been processed and we have received cleared payment, your item will be dispatched promptly from our UK based warehouse. All orders are sent by 1st class post or other 24 hour courier (for the courier service a surcharge will apply for items sent to the Scottish Highlands, offshore Islands and Northern Ireland, you will receive an email detailing the surcharge). Usually you will receive your item within 2 working days.


Customers should satisfy themselves that any item choice made is suitable for their intended purpose or use. We pride ourselves in top quality British customer service. In the rare event that you have a problem with your item please contact us and we will be more than happy to help.

Items purchased may be returned for a full refund within 14 days of purchase. The item must be unused and in the original packaging.





Contact Us

01403 888276


Alien Hydroponics
Unit 8 Oakhurst Business Park
West Sussex
United Kingdom
RH13 9RT