Systems IV garden hose water filter works great to minimize impurities, chlorine and chlorimine in tap water. Use to top off your pond. Easily attaches to your existing garden hose with the attached LEAD FREE solid brass fittings. 2 1/2 dia. 9" filter length, 12" overall length. Great to use with the mini vac or leaf vac so you don't end up with chlorine in your pond while you are removing leaves and debris. Guaranteed for one year. Average 7500-10,000