Alien Hydroponics RDWC 6 Pot pro System 55 litre
The 20 litre pots are linked together with a row of 32mm pipe and fittings whereas the XL 27 litre pots are linked together with two rows. This allows for a free flowing system, recirculating the nutrient solution seven times an hour. The larger diameter pipe also helps address the issue of the roots blocking the pipe. Air lines are connected to each pot to aerate the solution.