Silca’s helping you celebrate the Tour de France with a limited edition Yellow accessorized version of it’s machined Eolo Co2 cartridge regulator. It includes three yellow rings paired with a custom yellow Cartridge Helmet, the latter being reusable and protects your cartridges from accidental puncture.
As for the rest of it, Silca provides this detail: “The Eolo is made 100% in USA on Citizen L20X lathes and uses vaccum cast urethane o-ring seals which are completely non-permeable by CO2 while also exhibiting 10x the wear resistance of other o-ring materials.”
For the rest of the year, the Eolo comes with a 24 rings in 12 different colors so you can customize it anyway you like. Retail is $47.50.