Surplus (169) CamelBak Bottle Adapters in Chambersburg, Pennsylvania, United States (GovPlanet Item #10487540)
Upgraded 64oz Large Cup Holder Expander for Car, Expandable Cup Holder Adapter with Adjustable Base, Universal Compatible with Yeti, Hydro Flasks, Camelbak, Other Big Bottles Mugs Drinks in 2.95"-5.5" - Walmart.com
Amazon.com: Customer reviews: CamelBak Eddy Hands-Free Adapter, OneSize, Blue