need samples first for prototype. eventual orders in increments of 1000, 10,000 first year product sales anticipated.* pump needs to move water to a max height of 5 feet through 3mm to 5mm plastic tubing at flow rate of 200-500 ml per hour for remote irrigation. * pump must be VERY LOW CURRENT DRAW as it will be powered by a battery pack. want pump to move 10L to 50L of irrigation water over a time period of 4-6 weeks on one charge of a 4 cell 18650 Li-on battery pack.* pump must be long duty life in excess of 50,000 hours as failure will result in loss of expensive agricultural product* pump must be simple mechanically and quietPLEASE DO NOT TELEPHONE, I RESPOND ONLY TO EMAIL Show More