1.G1/2 , G15/16" POM plastic thread and G3/8 brass thread

2.Adjustable height :7.5"-10.5"', 8.5"-12.5"

3.anti-siphon device installation to make sure it can not siphon under 0.8mpa pressure 

4.Pressure design, Momentary shut off and Anti-siphon 

5.Free from leakage under 1.6mpa pressure 

6.Refill pipe, adjusted refill rate 0-30% by the available different refill stopper

7.Simple water level adjustment , the range for optional water level adjustment:0-2"

8.Prevents impurity from fill valve and easy to clean