Composed of food-grade PP water pipes and 304 stainless steel screws. 【Good Replacement】Temperature range: 10 degree ~ 70 degree. 【Effortless Installation】Water Inlet Automatic Float Valve can be quickly installed, household tools can be used. It has a patented design, and the valve does not need to be driven by electricity. 【Automatic operations】The upgraded water Levell control valve is fully automatic control. Van à Flotteur 1/2 Pouce 1/2 Inch Built-in Float Valve - Automatic Water Levell Fixation Facile La Main 1Stück Schwimmer Ventil Automatischer Wasserstopp Lange Lebensdauer 0.2-10kg eBa Float Valve 1/2 Inch is reliable to use.