Are the Anti-colic bottles compatible with the rest of the Philips Avent range?
Philips Avent Anti-colic bottles and teats are interchangeable with the majority of the Philips Avent range.
AirFree vent and Anti-colic bottles
You can use the AirFree vent on any Anti-colic bottle, but not on Natural bottles.
It is not recommended to use the AirFree vent with the Variflow teat because the AirFree vent needs to be facing upwards to have a full teat. This limits the Variflow functionality of being able to switch flows within a feed.
The Anti-colic screw ring and teats do not fit on the insulated cup.