Ponds can loose at least seven inches of water a week due to evaporation. It is therefore important to add water on a regular basis. Simply attach a regular garden hose to the float valve then place it at the surface of the pond. Its unique design will automatically allow water from the garden hose to flow into the pond when the water level is lower than desired. The float valve is adjustable to various water level settings. It comes complete with a 1/4-3/4-inch multi-hose adapter, which Allows connections to a range of garden hose sizes. Measures 2-1/2-inch length by 11-2/3-inch height by 5-inch width. This product weighs 0.28-pound.