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Custom Hydro BubbleGen Box

Custom Hydro BubbleGen


The Custom Hydro BubbleGen is a revolutionary way to circulate and oxygenate your nutrient solution – it removes the need for air stones and circulation pumps.

  • Submersible and quiet running
  • Oxygenates water efficiently
  • Can operate with 1000 – 4000 LPH pumps
  • Supplied with 3 suction cups for fitting.
  • Quick and easy installation.

Oxygenate and Circulate Nutrients with a Single Water Pump – No Need for Separate Air Pump Equipment

Custom Hydro BubbleGen Box


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The Custom Hydro BubbleGen features a twin-jet hydroponic bubble generator with an integral silencer that efficiently and quietly oxygenates and circulates a nutrient tank. Using atmospheric pressure to pull oxygen-rich air through the input port, it mixes with the nutrients passing through the body of the unit, ejecting an energetic circulating stream of nutrients and bubbles compressor air pump.

Promoting rapid growth and development by aerating and circulating nutrients at the same time. Roots love the cool, super-oxygenated water that the Custom Hydro BubbleGen creates - and as we all know, healthy roots make for bigger and better plants.

  • Performs two roles in one, oxygenating the solution while keeping nutrients evenly mixed
  • Very easy to install - attaches to a water pump, and comes with only two connecting pipes
  • Removes the need for air pumps and airstones
  • Very low noise levels - quiet and discreet
  • Highly effective with any growing method - soil, coco and hydro
  • Helps to keep the temperature of the solution as low as possible
  • Can be used in conjunction with separate chiller units, if necessary
  • Capable of pulling air in from outside the room (to further cool nutrients)
  • Compatible with most water pumps that move up to 4000 litres per hour
  • Helps to maintain populations of healthy aerobic bacteria
  • Removes dust and pollen by filtering the air
  • Lasts almost indefinitely, as it contains no moving parts
How the Custom Hydro BubbleGen works

The BubbleGen is a simple but highly effective bit of kit that circulates nutrients while aerating your reservoir tank at the same time. Before the BubbleGen came around, this was done using separate pieces of equipment. You'd have an external air pump that sat outside the tank, pulling air in from the room. This would be connected via airline tubing to an airstone that sat inside the tank delivering bubbles of air. At the same time, you'd typically have a pump sitting inside the tank to keep nutrients evenly mixed.

The BubbleGen allows you to do both jobs with a single water pump by utilising a phenomenon known as Bernoulli's Principle - no need for a separate air pump and airstone! Here, your circulation pump does all of the work instead. As the pump drives liquid through the BubbleGen, the air is automatically pulled in from outside the tank via the external filter. The water that gets blasted out is agitated and rich with oxygen, creating a vortex that keeps nutrients evenly mixed.

How to Use the Custom Hydro BubbleGen

The BubbleGen comes with a filter unit, a main body, two lengths of pipe, and some cable ties to secure your pump.

The filter unit sits outside of your tank pulling in air, and the main body sits in the nutrient solution at the bottom of your tank. The two are connected via a 1.5m length of 8mm delivery hose.

Attach a pump to the main body using the short length of pipe, and any nutrient solution that gets forced through the unit becomes infused with oxygen.

An instruction sheet can be found inside the box.


Explore our top picks for stellar yields! Our best-sellers range from spacious grow tents and efficient LED grow lights to premium hydroponic nutrients and plant propagation must-haves. We have everything you need, no matter what you dream of growing!
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