16g and 25g replacement cartridges for the CprO² and the CombO² pumps.

• Threaded screw-type for reliability and safety
• 25g has enough pressure to fill a 29 x 2.3″ mountain bike tyre (40psi max)
• 16g has enough pressure to fill typical road tyres to 100psi
• Compatible with screw-type refillers and Specialized CPRO²

CO² cannisters cannot be shipped via airmail

Occasionally, without notice, manufacturers change product design and/or specifications.