Package Includes: Comes with 6 replacement bite valves and 2 replacement straws — a convenient set to cover all your water bottle maintenance and replacement needs. Perfect Fit Compatibility: Precisely designed for Zak Designs Kelso 15oz water bottles, ensuring a snug, leak-proof fit every time for worry-free use. Please note that our product is not sponsored or endorsed by, or affiliated with, the brands it fits, including Zak. Safe & Durable Materials: The bite valves are made from quality, BPA-free silicone, while the straws are crafted from sturdy PE material. Both are heat-resistant, reusable, and built to withstand daily wear without cracking or leaking. Refresh & Extend Bottle Life: Easily replace worn or damaged mouthpieces and straws to prevent leaks and keep your water bottle performing like new — no need to buy a whole new bottle. Quick, Tool-Free Installation: No tools or special skills required. Simply remove the old bite valve, insert the new one, and you’re ready to go — perfect for busy families, kids, or anyone who’s always on the move.
