Product Size: Inner diameter: 45mm, outer diameter: 55mm, the middle hole diameter: 19mm. Our water bottle cover fit any standard 55mm opening water bottle, such as 5 gallon and 3 gallon bottles, as well as screw cap bottles. Spill-Proof: The water bottle caps have a no-spill design, will not spill, leak or overflow, and have a stronger seal than ordinary caps, preventing dust from entering and keeping the water clean. Food Grade Silicone: Made of food grade silicone, it is safe, environmentally friendly, no smell, BPA free, soft and elastic, not deformed at high temperature, dishwasher safe. Widely Used: The water bottle cap adopts an inward opening design, can be reused in water dispenser, water cooler, can also be used directly with electric drinking water pumps. Reusable Water Bottle Caps: Compared to plastic caps, our water jug caps can be reused thousands of times, saving you a lot of money and reducing plastic waste. Features
- Reusable
- Spill-Proof
- Food Grade
- Indoors & Outdoors
- Keep Water Pure & Clean
Fit any standard 55mm opening water bottle, such as 5 gallon and 3 gallon bottles, as well as screw cap bottles.
Widely Used: The water bottle cap adopts an inward opening design, can be reused in water dispenser, water cooler, can also be used directly with electric drinking water pumps.


Specifications:
Material: Silicone
Inner diameter: 45mm
Outer diameter: 55mm
Middle hole diameter: 19mm
Package: 2 Packs


Notes
Please wash before use.
Please check the size before placing an order.
Due to manual measurement, please allow 1-2mm difference in size.