Compost Tea Kit: 50 Gallon Brewer Kit: BubbleSnake, Large Brew Bag, Air Pump & Tubing Brew Kit for 50 Gallon Barrel: Get Brewing Special~ BubbleSnake, Bag, Air Pump & Tubing Kit is easy to assemble, so you can get to gardening. The 1268 GPH Commercial Grade Air Pump keeps dissolved oxygen levels within desired range. Kit comew with Large Brew Bag, BubbleSnake, Air Pump, all hoses and fittings. Excellent Customer Service. Call TeaLAB direct and immediately talk to a human. We pride ourselves in helping others succeed. Call anytime with your compost tea questions.Built to Last in Humboldt County California