Cap: -Material = Molded Nylon - Threads = 2.25” ID 5TPI Modified AM Buttress -Vented= Yes, 3.5-5 PSI Managed Pressure/Vacuum Vent -Lanyard = Yes 8" Long- Cap lettering states = " UNLEADED FUEL ONLY"This Cap Fits Any of our 225 Series Necks in Aluminum, Steel or Stainless
