Brewer comes with the air pump and tubing. A 5-gallon bucket and brew kits sold separately. Brew kits can be found online at the Gardeners Pantry. Included is a hose attachment that will add the tea from a bucket directly into a garden hose. The tea that can be made from a compost tea brewer, provides these main benefits: improved plant growth and nutrition, better soil structure/water-holding capacity/nutrient retention, decreased disease. Increases the diversity and number of highly beneficial microorganisms in your soil and on your plants. Using this brewer is proven to be a high quality actively aerated tea.