Billet CO2 & Nitrous Bottle Knobs

PRP’s new billet replacement caps are a unique design to replace any existing CO2 bottle knob, or nitrous bottle knob. Machined from 6061 aluminum and anodized for corrosion protect. Available anodized finishes are Clear or Black. Comes laser etched for a great finish and includes hardware.


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  • Replace any existing CO2 or Nitrous bottle knob
  • Made from 6061 aluminum
  • Anodized for corrosion protection
  • Includes mounting hardware
  • Made In USA