Nice filter media3 with different degrees of coarseness - I think it's from medium to fine to finer. I don't think it's coarse or superfine. This is great for updating filter boxes. Simply cut to required size. I use scissors and a utility knife to trim to size. I like that all 3 different roughness levels are included in one rather than having to buy and treat separate ones. It's a rigid spacer, so it's best suited for applications where you just plug it in. It won't crumple well. Very happy with this medium.
Sink filter Prio New Water Start Osmos OU380 white
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