Toilet fill valves Material: POM plastic high strength, anti-erosion Concealed float lever to save toilet tank space specially preferable for small toilet tank kinds of pipe screw connection (POM G1/2, POM G3/8, POM G15/16 bronze material also available) for you selection. Working pressure range: Excellent water fill/ stop under the water pressure between 0.002Mpa and 0.08Mpa. Designed with very low noise Quiet water filling and quick water stopping Resistant to water splash and fluctuating pressure Effective anti-siphon structure Easy to install and easy to adjust water level and water volume as your request. Stable water supplement ratio. UPC, CUPC, CE Certifications Standard package