Claber 8053 Oasis 4-Programs/20 Plants Garden Automatic Drip Watering System Timer has 4 program settings: 10, 20, 30 and 40 days to water up to 20 plants Opens twice daily to deliver 4-ounce, 2-ounce, 1.5-ounce or 1-ounce of water per dripper Includes: a 6.6 gallon polypropylene plastic reservoir, 33-feet of PVC hose, 20 drippers and 20 spikes Operates on a gravity feed; one 9V alkaline battery required (not included) 2-Year manufacturer warranty