End Stop, Application Potable Water, Fitting Connection Type Tube, Fitting Material Acetal, Fitting Tube Size Outer Diameter 1/4 in, Maximum Operating Pressure 101 psi, Maximum Operating Temperature 158 Degrees F, Specific Fitting Shape Tube Cap, Includes Pre-Applied Thread Sealant No, Color Gray, Standards , NSF/ANSI 51, NSF/ANSI 61, Compatible Tube Material Brass, Copper, Nylon, Polyethylene, Polyurethane, PVC, Steel, Minimum Operating Temperature 68 Degrees F