CamelBak ADULT eddy+ PLUS Replacement 2 x Bite Valves and Straws - Clear (Adult Size) by CamelBak (CB1766101000)
CamelBak Big Bite Valve | REI Co-op
Amazon.com: Aquatic Way Bite Valve Replacement Mouthpieces fits Camelbak and Most Brands (4-Pack), with Shutoff Valve and Tube O-Ring for Hydration Bladder and Backpack Water Reservoir : Sports & Outdoors