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)