VermiT Bio-Cartridges are the key to rich, potent compost tea made with the VermitT Extractor. The two different sizes have a dilution ratio of 1:50 which will create 250 water gallons (with a 5-gallon cartridge) or 500 water gallons (with a 10-gallon cartridge). "Awake" and "Frenzy" liquid solutions are also included, and act as activators of the cartridridge when it's inserted into the VermiT Extractor. The cartridge is good for one-time use, and lasts up to two years after purchase.Price: