- Highly porous sponge maximizes bacterial action
- Increased surface area offers maximum bacteria colonization
- Soft sponge material is easily cleaned
- Polyether foam for longer life
- Uplift tube and air diffuser combination provide maximum lift and won’t easily clog
- Other uses: polishing filter for canister filter applications, hang on filter applications or uplift tubes of undergravel filters
Aquarium Solutions Bacto-Surge Biological Sponge Filter Black XL
$25.99
Free shipping within 3 days
Easy returns within 30 days
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