![[Resun] 3pcs Replacement Filter Wool for 21L Starter Aquarium Fish Tank | SMX350 Hang-On Filter](http://cdn.shopify.com/s/files/1/0077/7247/1359/products/Banner_c16a792a-389f-4134-9fb9-fe05b0e41dc7_{width}x.jpg?v=1654236716)
Easy to Use.
Comes with 3pcs of replacement filter wool for the 21L Starter Aquarium Fish Tank and/or SMX350 Hang-On Filter.
Suitable for:
- 21L Starter Aquarium Fish Tank
- SMX350 Hang-On Filter
Comes with 3pcs of replacement filter wool for the 21L Starter Aquarium Fish Tank and/or SMX350 Hang-On Filter.
Suitable for: