Description
xPawfly 12-Inch Cylindrical Aquarium Air Stone — Large Tank Aeration Diffuser
The Pawfly 12-Inch Cylindrical Air Stone is designed for sizeable water environments like expansive freshwater tanks, garden ponds, DWC setups, and active aquaculture systems. Its long, 1.9-inch diameter cylinder creates a broad column of bubbles that travels through the water, helping to introduce oxygen and promote steady circulation across large volumes.
When deployed, you’ll notice a clean, continuous plume of micro-bubbles that diffuse through the water column. With a jetting capacity of about 30 L/min and a recommended pump power above 20 W, it supports reliable diffusion for hours, contributing to consistent water movement without dramatic surges.
Stable, reliable in-water performance
- Stable in water: Two square end holders keep the diffuser oriented and prevent drifting during bubbling.
- Weight and design: Approximately 34.8 oz, helping it stay put in larger water volumes for steady operation.
Simple setup and ongoing care
- Ease of use: Soak the stone completely in water for 3 hours or more before first use to prime the micro-holes.
- Maintenance: Clean regularly with a soft brush to prevent buildup that can affect diffusion over time.
Specs and compatibility
Plan installation with compatibility in mind. Use standard 3/16" or 3/8" ID tubing and ensure your air pump delivers sufficient power for constant diffusion.
- Size: 1.9" diameter x 12.1" length.
- Diffusion: dense micro-holes create uniform bubbles.
- Output: ~30 L/min.
- Power: recommended >20 W.
- Weight: 34.8 oz; stability is aided by dual end holders.
- Ideal for: large tanks, ponds, DWC, and outdoor water features.
Real-world use cases
Imagine clear water in a large aquarium, a pond benefiting from steady aeration, or a DWC system where roots receive gentle, consistent oxygen diffusion. This diffuser is built for bigger environments, delivering dependable bubbles that help promote water movement and diffuse oxygen across the water column.
Notes
Not suited for small aquariums. If your setup is compact, Pawfly offers models sized for smaller volumes to match space and goals.
FAQ
Q: What tanks is this air stone suitable for?
A: Best for large aquariums, ponds, DWC systems, and outdoor water features; not recommended for small tanks.
Q: How do I install and maintain the Pawfly air stone?
A: Soak 3+ hours before first use; connect to a compatible air pump; clean with a brush periodically to prevent clogging.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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