Dr. Brown's Natural Flow Options+Replacement Vent Kit, Narrow, 2 Count (Pack of 1)
Replace any worn or lost Dr. Brown's® Options+™ bottle parts with the Options+™ Replacement Vent Kit. The kit fits exclusively Options+ bottles and includes the same pieces that come with the bottles. The Replacement Vent Kit is ideal for replacing any worn, damaged or lost Options+ vent system parts. Dishwasher (top rack) and sterilizer safe. BPA free.

Dr. Brown's Natural Flow Level 4 Narrow Baby Bottle Silicone Nipple, Fast Flow, 9m+, 100% Silicone Bottle Nipple, 6 Pack
Dr. Brown's Natural Flow® Level 4 Nipple is the fastest flow for babies 9 months+. Dr. Brown's® Level 4 Nipple, together with the Anti-Colic internal vent system, is clinically proven to reduce colic. Dr. Brown's® bottle and nipple provide a more comfortable feeding experience for baby by decreasing spit-up, burping and gas. This vacuum-free feeding is closest to breastfeeding and Dr. Brown's® Fast Flow Nipples provide a consistent flow so baby can feed at their own pace. The breast-like nipple shape encourages a proper latch for a more natural bottle feeding experience and eases the transition from breast to bottle and back again. The Level 4 Nipple and Anti-Colic vent system is proven to help preserve bottle milk nutrients and aid in digestion for a better night's sleep. Made of super-soft, 100% silicone, the Level 4 Nipple fits all Dr. Brown's® narrow bottles. The suggested age range for the Level 4 Nipple is 9 months+, but baby's preferred flow rate may vary. Safe for use in dishwasher (top rack only), electric and microwave sterilizers or boiling water. BPA free.