Features: 1No need for electric float to supplement water. Instead, use atmospheric pressure or water pressure to refill water. 2Free ascent and descent controlling water level, lifting design for determining the water level you want. 3Through the principle of tap water pressure, pump pressure and water ball valve limit, the water body of the water tank or domestic tap water can be easily introduced into the water tank. 4Save time and energy to automatically fill water, do not worry about the changes in fish tank water level. 5Hands free and automatic limit for water supplement, the height can be freely adjusted within 15cm(5.9in). Condition: 100% Brand New Item Type: Auto Water Filler Material: Plastic Color: As Pictures Shown Product Size: Float Ball Size: Approx. 82x40 mm/3.2x1.6 in Weight: Approx. 261g Suitable for Pet Type: Water grass tank, sea water tank, seafood tank, water storage tank Package Included: 1 x&nbspFloat Ball Valve1 x PE Pipe2 x&nbspBrackets4 x&nbspScrews