No more guessing which filter is right for you. This filter works for both hard and soft water, and having the pre-filter already attached, prevents any sediment in the tap water from clogging the filter. As our older water pipes continue to crumble, sediment in the tap water will be an increasing problem. The "One Solution" has solved this, and other problems, to insure you have a steady flow of water through your Filter of Eden! Not only is this the HIGHEST quality garden hose filter on the market, there is nothing like it on the market! This PATENT PENDING filter is a must for Organic Gardeners because it effectively removes almost all the chlorine, chloramines, and some heavy metals from the tap water. This product is hand made right here in the USA with high quality parts and is built to last! It will filter 20,000 gallons before the filter needs changing.