I have a Medela Double Breast Pump that is either battery or electric operated. It works really well and would take me about 10 mins to pump around 8 oz. You can select either single or double pumping to suit your needs. I really only used it for about a month or so and not everyday. It cost me $130 new. The only thing missing is the two small 4 oz plastic bottles, which you can buy for really cheap at Target or WalMart. I do have three valves, though, (two pictured) that have been washed and sterilized. If you prefer, though, you can also purchase a new set and I believe they are also reasonably priced. Location: Everson it's NOT ok to contact this poster with services or other commercial interests washington