Lees Discard-A-Stones are disposable air diffusers with reusable inserts for attaching to the air line. The Coarse Bubble Diffuser creates a flurry of large bubbles; for smaller bubbles, use Lees Fine Bubble Diffusers.
- Excellent aeration device for all aquariums
- For use in under gravel filters, corner filters or just as decorations.
- Safe for fresh and saltwater aquariums
- 6 Count: 6 stones and 4 inserts
- 100 Count: 100 stones