Instead of throwing away your plastic Brita/Maxtra waste filter you can now REFILL it. The plastic filter comes with a box of 5 refills.Each will filter 120L of water.
So although you will have to throw away the contents you can clean and reuse the plastic holder.Not plastic free but plastic less.
Boxes of further refills available
The refill fits Britax/Maxtra oval filters.
The filters are great for hard and chlorinated water. Contains active carbon from Coconut shells.
Please note :these are not made by Brita or Maxtra but are suited to these makes