Filter Unit 3.0 -5pcs

I noticed my cat's water was staying fresher longer with these filters, and the high density micropore layer really seems to catch more debris than the old style. The silica gel ring seals tightly, so no leaks to worry about.

The double filter components make a noticeable difference—the water tastes fresher after a few days compared to the old single-layer filters. My cat's been drinking more since I swapped these in.

The silica gel ring actually seals tight against the housing, so no more water sneaking past the edges like my old filters did. Five in a pack means I'm set for months without reordering.