6 Pack, 1/2", Push To Connect Evopex Female Brass Adapter Fitting, High Performance Polymer With Great Chemical & Chloramine Resistance, No Tools, No Calibration, No Rings For Error Proof Installation, Visual Indicator For Assurance Of Proper Fitting Connection, Easy Install, No Potential For Leaks Caused By Nicks On The Fitting Exterior, Maximum Temperature 200 Degrees Fahrenheit, Maximum Pressure 160 PSI, No Special Tools, Soldering, Glue Or Crimping To Plumb An Entire Home.