Connect to any standard garden hose for many uses - filling pools, spas, hot tubs, and ponds, outdoor pet baths, spot-free car washes, watering gardens & more Remove heavy metals & other contaminants before they get in your pool, spa, or other backyard or household investment. Activated carbon helps balance water chemistry from the start - saving you money! Great for top-offs and entire fills Removes scale, iron, lead & other metals*, chloramines, hydrogen sulfide & other contaminants including odor causing organics, reduces hard mineral deposits & suspended solids, filters up to 10,000 gallons Standard hose fitting at top AND BOTTOM [ *Please note: Carbon Pre-Filters are intended to remove MOST common mineral deposits & impurities, making chemical balancing easier. Filter will not completely purify heavily contaminated or overly problematic water Not intended for filtration of potable water ]