Camelbak Big Bite Replacement Valve - BSA CAC Scout Shop
Replacement Bite Valve For Hydration Pack Fits Camelbak Camelback Mouthpiece UK | eBay
HydroLink™ HydroLock Replacement Bite Valve
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