This 6 plant site 1 reservoir passive system is like all our systems. built to the highest quality standards and with the highest of quality materials around. The aeration package includes our Versa air 18W 692 GPH commercial air pump. 50 foot of our green gecko food grade Silicone airline, and 6 2x2" air stones. The base unit comes with a Six plants site 5 gallon 90mil and food grade  buckets One reservoir bucket also 5 gallon 90mil food grade, Total of  15 foot Strategically cut lengths of black Hydro farm vinyl tubing. And then aken and built around the needed connectors, to make this system extremely user-friendly and takes no time at all to setup. This unit also include seven red top 1/2"  ball valves half-inch. 5, 1/2" barb tees. 1 1/2" barbed elbow, water level indicator for the reservoir, six mesh net lids with quick connects built-in, 1 reservoir lid with chiller ports built-in. All grommets have been installed for you.  Comes with a conditional moneyback guarantee making you have nothing to worry about as quality is always guaranteed with Versatile Hydroponics,, LTD.