Bundle includes 2 Items: (1) Shurflo 8000-541-236 Automatic-Demand Diaphragm Pump with (1) Male 3/8" Hose Barb Kit. The Shurflo 8000-541-236 Demand Diaphragm Pump is powered by a 12V DC motor and delivers up to 1 gpm flow for optimal performance in a range of applications. The unique conical valve design delivers flow rates at maximum discharge pressures, making this the lawn and garden pump of choice for sprayers used around the home and farm. It can be fitted on spot sprayers or agricultural sprayers for low pressure agricultural spraying, lawn and garden spraying, fluid transfer applications, and more. The 60 psi demand switch is useful because it eliminates you needing a pressure regulator with your diaphragm pump. The demand switch only operates when liquid flow is required and shuts the pump off automatically when no flow is required, saving battery life. A male 3/8" HB kit is included to attach the pump to a hose with a 3/8" ID. Note: The Shurflo 8000-541-236 and 8009-541-236 are the same exact pumps. The difference in the first digits only refer to quantities purchased from the manufacturer.