Orifice size: The inside diameter is 6.5mm / 0.25inch.
Material: Made of high quality plastic, safe and hygienic.
Features: The pressure difference generated by the water in two different passages is used to complete the function of blocking the water flow.
The ASO valve allows the water filter to shut off the water supply when the tank pressure reaches about 65% of the water supply pressure.
Application: Suitable for most reverse osmosis water systems, supply four side valve water purifier accessories, tap water pressure relief quick plug interface pressure relief regulator.