Lee’s Aquarium Discard-A-Stone Coarse Disposable Air Diffusers (6 pk)
Discard-A-Stones are disposable air diffusers with reusable inserts for attaching airline. They are an excellent aeration device for use in under gravel filters, corner filters, or just as decorations.
Product Features
- Disposable air diffusers designed for easy replacement
- Includes reusable inserts for attaching airline tubing
- Compatible with under gravel filters, corner filters, and as decorative elements
| Feature | Detail |
|---|---|
| Quantity | 6 pieces |
| Material | Plastic diffuser body, reusable silicone insert |
| Use Case | Under gravel filters, corner filters, aquarium decoration |
FAQ
Can the inserts be cleaned and reused multiple times?
Yes, the inserts are reusable and can be cleaned and reused with proper care.
Are these diffusers compatible with all types of aquarium filters?
These diffusers are compatible with under gravel filters and corner filters. They may not fit all filter models directly without adjustment.
Do the diffusers come with airline tubing?
No, the diffusers come with reusable inserts for attaching airline tubing. Tubing is not included.

Brian Watson –
The diffusers work well in my corner filter. The inserts are easy to clean and stay in place. I’ve used them for over three months and they still function properly. A simple and effective aeration solution.
Eric Mills –
I found the coarse texture helps with oxygen distribution in my tank. The inserts are reusable and fit well with my existing airline setup. A good value for the price.
Elizabeth Harris –
Great for beginners. The diffusers are easy to install and replace. The inserts hold the air well and don’t clog easily. I use them in my under gravel filter and notice better water movement.