Specification:Material: PVC, ABSColor: White, Grey, RedThread Size: G1/2Total Length: 135mm / 5.31 inchValve Inner Diameter: 20mm / 0.79 inchValve PVC External Adapter Inner Diameter: 20mm / 0.79 inchBulkhead Fitting Adapter:Outer Diameter: 34.6m / 1.32 inchBulkhead Available Thickness: 10mm / 0.39 inchSilicon Seal Gasket Thickness: 4mm / 0.16 inchFeatures:PVC material is corrosion resistant.Widely used in water tank, fishbowl, chemical plant pipeline installation, etc.Need to drill a 35mm diameter hole to install the bulkhead fitting adapter.Note:The locking nut of the bulkhead fitting adapter is reversed threaded.Package Content:2 x G1/2 Valve2 x Bulkhead Fitting Adapter2 x Valve PVC External Adapter2 x PVC Union