Brummie Bubbler starts with a 90 litre tank to accommodate the nutrient solution as well as the several air stones needed for putting oxygen into the water, and on top of this sits a 15 litre sub-surface tray filled with pebbles or growstones, with a drip ring that provides a constant flow of nutrient direct to the top of the root zone.

Hailea Super Silent Adjustable Air Pump 2 Way ​

Multilevel muffler which is low in noise,non-oil lubricating design.High efficency and extradinary output, low power  consumption,cost effiective. Continuous operation and long service life.