mam bottle confusion

[NIfirsttimer]

Ruby is fed EBM from avent bottles at the min, they arent really working for us, shes getting lots of wind, and the teats are often collapsing and leaving her chewing on a flattened teat and getting frustrated! I have a MAM pink ultivent bottle which i just tried her with and it was way WAY better, she was much more comfortable, and less windy, settling almost as soon as she had finished. Ive been looking at them online to try to source some, but im confused.....
there are these ultivent ones...
https://www.mamonlineshop.com/cgi-b...WD=ultivent&PN=Clearance_Bottles.html#a14#a14

and then these ones branded as anticolic..
https://www.mamonlineshop.com/acatalog/0__months.html

are the anticolic ones just the new version of the ultivent, with a diferent name, or are they actually different.. ie, are the teats etc interchangeable?
dont want to end up with all different types!

 

[Arcanegirl]

They look the same, just different designs i would think.

Edit: Looking at the spare parts section, the bits are the same as the ultivent ones