Pre-Filter Up To 40K Gallons - 5MWhether you are filling a big pool, a little pool, or a spa, it can take days or even weeks to purify the water so that you can swim in it. New pools need to be shocked, treated, and have any phosphates removed as soon as possible, which may leave your pool not swimmable for prolonged periods of time. Reduce the wait, and the chemicals you need by using a Pleatco PureStart Filter. These filters hook on to the end of your garden hose, allowing you to