Reduce. Reuse. Repair… Klean Kanteen's Maintenance Kits are designed to do just that. A no-fuss fix that extends the life of your bottle so it’s running as long as you are.

Kit includes: two replacement o-rings for Classic caps.

Works for all Classic caps: Loop Cap, Stainless Loop Cap, Bamboo Cap, Sippy Cap, Sport Cap.

Classic Opening Diameter: 1.75" (44mm)