Replacement Vent Inserts for 4 oz. and 8 oz. Dr. Brown's Natural Flow bottles. These inserts come in packages of three and fit the STANDARD bottles only.
- Replacement inserts for the acclaimed Dr. Browns Natural Flow baby feeding system
- Use with Dr. Brown's Standard 4-oz. and 8-oz. Natural Flow baby bottles
- Dishwasher safe
- Replacement Reservoirs Set