Whether you simply need a spare, wish to use a different style cap, or need a new replacement. The Kanteen Flat Cap is great for any purpose and it fits all Klean Kanteen bottles – regardless of bottle size.
100% BPA-free polypropylene (pp#5) witha non-toxic silicone o-ring for a leak-free seal.
Klean Kanteen Black Flat Cap Specs:
Material: BPA-free polypropylene (pp#5)
Cap is not leakproof
Manufacturer: Klean Kanteen KPPF
The KPPF is also known by the following part numbers: