We believe in multi-compatibility, so we’ve extensively tested this with The Coldest Water Bottle, as well as other Stainless Steel Bottle Brands.
VERIFIED COMPATIBILITY WITH:
The Coldest Water Bottle, HydroFlask Standard Mouth Bottles, Klean Kanteen Classic Mouth Bottles, Rehydrate Pro Standard Bottles, WaterVault Water Bottle 24 oz Only* Bottles
POSSIBLE COMPATIBILITY:
Stainless Steel Bottles with 1.75 inches inner screw mouth diameter.
INCOMPATIBLE / DOES NOT WORK WITH:
Hydroflask Wide-mouth Bottles, Hydroflask Narrow-mouth bottles, Widemouth Bottles. Narrow-mouth bottles, WaterVault K2/Soda Bottles. Klean Kanteen Soda Bottles