Dr. Brown's Natural Flow Reusable Baby Bottle Vent System and Reservoir Cleaning Bristle Brush,BPA Free,Blue Brushes,4-Pack
These replacement Cleaning Brushes are designed to use with all Dr. Brown's Natural Flow baby bottles. These are the same exact pieces that come with each Dr. Brown's Natural Flow baby bottle and are meant to replace worn or lost brushes. These Cleaning Brushes help keep the Dr. Brown's Vent Inserts and Vent Reservoirs clean and clear of blockage so the patented internal venting system functions properly.
Keep vent inserts and reservoirs clean in any Dr. Brown's bottles with Dr. Brown's™ Cleaning Brushes. Happy Feeding stays happy when you use the cleaning brush to clean and clear blockages of dried milk and formula. The multi-purpose, lightweight brush easily maneuvers through all Dr. Brown's bottle components – especially the Internal Vent System – for a fully clean and functioning bottle interior. Brushes can also be used to clean sippy and straw cups when baby's feeding progresses. Replace lost or worn brushes with this 4-pack or just have a few spares on hand. BPA free.

Dr. Brown's Travel and Storage Baby Bottle Caps for Natural Flow and Options+ Baby Bottles - 3-Pack - Narrow
These Storage/Travel Caps are designed for the standard 4-ounce and 8-ounce Dr. Brown's Natural Flow baby bottles. These caps securely seal the standard 4-ounce and 8-ounce Dr. Brown's Natural Flow baby bottles for travel and storage of formula or breast milk.
Whether you're storing, travelling or warming the bottle, Dr. Brown's Natural Flow® Storage/Travel Caps get your baby bottles ready for anything! Take the storage and travel cap along with your bottle wherever it goes to keep the contents safe and secure. Simply remove the nipple, collar, internal vent system, and screw on the cap - and you're done! Seal the bottle when you're finished pumping, when transporting, and even when warming the bottle. If you're travelling by air, it's the perfect companion, preventing the effects of a pressurized cabin on the Dr. Brown's® vacuum-free bottle.