Check Valve, 1/4 in, Single, Inline Ball Cone, Polypropylene, Barb x Barb/ MAXIMUM OPERATING TEMP: 140.0 DEG FAHRENHEIT SINGLE RESPONSE CONNECTION STYLE: B65 BARBED-BEADED ALL ENDS VALVE OPERATION METHOD: MANUAL CONNECTION TYPE: UNTHREADED EXTERNAL HOSE ALL ENDS VALVE SIZE: 0.250 INCHES OPENING PRESSURE SETTING: 125.0 POUNDS PER SQUARE INCH FACE TO FACE DISTANCE: 2.02 INCHES MATERIAL: PLASTIC POLYPROPYLENE OVERALL STYLE DESIGNATOR: A2 STRAIGHT THRU