PVC Coated Zinc Hub Connector with Thermoplastic Insulated Throat, Pipe Size 5 Inch/129 Metric, Overall Diameter 6.88 Inch/174.75 Millimeters, Maximum Panel Thickness 0.25 Inch/6.35 Millimeters, Throat Diameter 4.94 Inch/125.48 Millimeters, Nitrile Rubber (Buna-N) Sealing Ring, Dark Gray