This Valve Is The Substitute Of The Traditional Float Ballcock, Which Can Be Applied To Various Application Like High Water Tanks, Pools, Water Towers Of The Industry And Civil Construction, Etc Automatic Control, Low Self-Complementary Water, Water Full Automatic Stop Beautiful Appearance, Small Size, Practical, Simple Installation Without Electricity, Easy To Use, Long Life, Low Failure Rate, Saving Water Resources Please Do Not Buy This Product If You Getting Low Pressure Water