4 Pack Bite Valve Replacement and 90 Degree Silicone Mouthpiece for Hydration Pack. Shutoff Nozzle and O-Ring Kit for Outdoor Backpack Hydration Bladder Reservoir - Walmart.com
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
The 5 Best Hydration Bladders of 2023 | Tested by GearLab