Reduce. Reuse. Repair? Our Maintenance Kits are designed to do just that. Our kits include o-rings, gaskets and gaskets tools — 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)