Dr. Brown's Natural Flow Options+Replacement Vent Kit, Narrow, 2 Count (Pack of 1)

They do exactly what they are supposed to do. They are durable and easy to clean. They are not versatile to other bottles, they only work in the 8oz tall Dr Browns bottles, but they are great replacement parts and I’ve ordered them a couple times. Easy to use and pretty self explanatory. They help baby to be less colicky as they reduce the amount of bubbles significantly. I didn’t use these bottles with my last baby and I am using them with my second and I definitely notice a difference with tummy pain and fussing due to bubbles if we use another bottle without this.

For those that do not know, the Doc Browns Anti-Cholic bottles are great bottles that work as advertised, particularly in their anti-cholic function. This stem is the feature that permits that function. The bottles also travel well...which is how we kept loosing these stems and stem caps. So I bought a few more. Bein as how these are the exact same brand and part they function in the bottle well. I just wish that Doc Brown would amend their bottle brush design to include a brush that would effectively clean this part. But I've never had one break, the part itself is great, and the bottle design as a whole fulfills its promises.

A couple of our green vents fell into the bottom of the dishwasher during washing and melted on the heating coil (oops). This replacement kit was super affordable and fit as expected in our glass Dr. Brown's bottles. For future reference, get an enclosed dishwasher basket to wash these in so that they don't melt like ours did! No fault to the product, it just won't stay in the silverware basket unless it's enclosed.

Favorite bottles.

Me lo recomendó mi doctor porque mi bebé nació de 6 meses y tenía dificultades para tomar pero con este repuesto de ventilación no dejaba que mi bebé tomara aire ella ahora tiene dos años y sigo usando esta marca en sus diseños

Dr. Brown's bottle system is great for all ages of babies.

Fits exactly as expected. Prevent gas for babies

Exactly what’s shown

Perfect replacement for dr. Browns babby bottle.

La mejor marca para tu bebé

After a few of these went missing I was happy I found a seller who sells replacement pieces. Came as expected. Thanks!

Il faut commander les nouvelles tetines Dr.Browns , les anciens modèle n'est pas compatible... les fillets ne sont pas assez long.

Todo perfecto, embala perfecto a las otras mamilas de Mr brown que ya teníamos, me encantaría que fuera un color más discreto o bueno, ya sea azul o rosa como las mamilas que venden pero es un detalle meramente estético; Es funcional, que es lo que importa. Muy contentos con la compra