1、Applicable Model: RV toilet water valve is replacement for Aqua Magic V High and Low models, please confirm whether your model is applicable before buying. 2、OE Number: The part number of Rv toilet water valve kit for reference are 31705, please confirm whether it is consistent with the OE you need. 3、Frost Crack Resistance: Add a layer of elastic lining material inside the water valve to offset the volume increase when the water freezes, so as to prevent the water valve from breaking. 4、Leak Resistant: Water valve designs with ultrasonic welded valve joints, stronger covers, thicker walls and tighter connections help prevent dreaded leaks. 5、Easy to Install: RV toilet water valve kit is strictly engineered according to the original standards for exact match, directly replace for original one.