Inside the filter: Brita vs Supermarket filter

Water filters have different things inside. Does it matter to buy the brand one?
The filters used on this video were a Brita Maxtra, and a Supermarket whitelabel brand (from Pingo Doce).

00:00 Intro
00:30 Opening the supermarket filter
03:15 Inside the supermarket filter
04:39 Supermarket filter opened
05:14 Opening the Brita filter
08:45 Inside the Brita filter
09:20 Comparing both filters
10:07 Comparison of refil speed