MaterialForged AluminumSealBuna-NFemale ThreadNST (NH)Female Thread Size4-1/2"Storz Size4"Working Pressure150 PSIWeight Lb4.7800ConstructionRocker LugMachined from forged 6061- T6 aluminumHardcoat anodized components per MIL-A-8625 Type III Class 1Buna-N gasketsCast aluminum lock lever assemblyAvailable OptionsConsult Dixon for pricing and availability of other threads and sizes.