The handy adapter allows you to connect a standard garden hose to your household taps without and mess or fuss this will let you fill your aquariums buts and much more without wasting or spilling water as you work depending on the length of your hose it can be used to supply water for cleaning your car or supplying water to high pressure cleaners where you would not normally have a water supply applications aquariums swimming pools watering plants washing the car filling heating