UP100 New Stainless Cornelius Type Keg Ball Lock Post Poppet Female Thread Gas With Liquid 19/32-18 Keg Seal Replacement Kit O-ring The CornyKeg pin to ball lock conversion kit allows you to convert any Firestone, Spartansburg or Hoover pin lock keg to a ball lock keg. The kit contains a liquid and gas post fitting, our new universal poppet, plus two orings for the fittings and two orings for the liquid and gas tubes in the keg. This Kit Meets All Industry Standards - Sealed for Safety. The fittings, poppets and springs are made of stainless steel. Thread Standard: 19/32"-18