GEX Slim Mat Water pH Keep & Bacteria Replacement Filter Material 3 Pieces

Purchased this year and am selling it as it is no longer needed in my home.

GEX Replacement Filter Media Slim Mat
Wool filter mat that promotes pH adjustment and bacterial growth.

- Quantity: 3 pieces (3 remaining out of a pack of 5)
- Material: Wool mat, plant-derived ingredients
- Use: pH adjustment, filter media for bacterial growth
Replacement

Thank you for looking.