Natural Flow Options+Replacement Vent Kit, Narrow, 2 Count (Pack of 1)

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.

Perfect replacements. We had gotten some Dr browns bottles second hand and needed new replacement vents. Works great!

Fits exactly as expected. Prevent gas for babies

They may be annoying to clean but the flow is so much better with them in the bottles. I like to have extras of these and exchange old parts for new ones

Los he comprado muchas veces para las botellas de mi niño. Son las únicas en las que toma su leche y este kit me ha salvado!

Exactly what’s shown

Easy to use and clean Durable with no leaks Helped with gas and tummy aches

I love Dr Brown bottles! My little has used them since birth. I ordered these extra ones as my MIL ordered bottles that do not have these. I like to ensure I use them because they truly do help avoid air bubbles and air intake.