Description: 1/4" OD Quick connect to 1/2" Thread tube ball valve. Can be used for Reverse Osmosis systems or can be used to connect a refrigerator line. Applied to housing in line filters etc. Material: POM(Polyoxymethylene) Color: White Specification: Interface inside diameter: Approx.0.9 cm/0.35inch Package Includes: 6 Pieces Quick connect tube ball valve