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$9.88 ($4.94/Count)
Get it as soon as Saturday, May 11
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From the brand
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Pawfly has been deeply engaged in independent development, production and sales. We specialize in all must-haves of aquarium accessories, aiming to providing superior customized aquarium necessities for aquatic hobbyists.
Adhering to the vision of “the best or nothing”, Pawfly shows incredible excellence in innovation and optimization. We’ve obtained a boom in market demands with our quality and integrity.
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Product Description
Pawfly specializes in all must-haves of aquarium accessories such as air pumps, air stones, sponge filters, fish nets, cleaning brushes and other accessories to set up your aquariums.
4 Inch Air Stone Cylinders
The 4 inch air stone cylinders feature durability, steady bubbles and high dissolved oxygen rate. Optimal for aerating your water reservoirs and livening up your aquatics. A necessity to have in the house of aquatic lovers.
Made from enduring and washable silicon carbide, they are well built to keep stable in water and produce constant bubbles for fish’s breath. Perfect for aeration in fish tanks, ponds, DWC reservoirs, aquariums, etc.
- Abundant medium bubbles
- Driven by pumps over 7 W
- Fit for 3/16 inch ID hose
- Stable
- Ideal for fish and plants
- Soak for 1 hour before use
- Packed with 2 Pcs in total
What Kind of Air Stone Should I Use?
A bigger air stone needs a more powerful pump to produce more bubbles.
Basically bigger air stones can produce more nice bubbles and they're used for powerful air pumps. If you connect a bigger air stone to a small pump, the bubbles will be produced only at the front of the stone. Small pumps go well with small air stones while powerful pumps and small stones don’t get along well.
About Shapes
The most common shape of this device is cylinder. However, you can also find it in globular, disc, or even cuboid shape. The cylindrical shapes can exist in many sizes and colors. Disc shapes can stay steady at the bottom of your tank, while globular ones can produce more bubbles in the case of the same size.
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4 Inch Large CylinderThe large cylindrical bubblers are well built for continuous use. You need an air pump more than 7 W to run the stones for constant bubbles. |
Steady Medium BubblesWith large jetting volume of 5 L/min, each bubbler produces enormous medium bubbles and always keeps still due to its stable construction. |
Easy to UseSoak the stone in water about 1 hour before use. Clean it regularly as it gets clogged and replace it when not working properly. |
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| Customer Reviews |
730
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4,493
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1,333
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1,189
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3,062
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| Price | $9.88 | $5.87 | $5.89 | $12.99 | $6.99 |
| Shape | Cylinder | Cylinder | Disc | Flat bottom | Cylinder |
| Jetting Volume | 5 L/min | 0.8 L/min | 2 L/min | 15 L/min | 1.2 L/min |
| Dimension | 2" x 4" (D x H) | 0.6" x 1" (D x H) | 1.5" x 0.7" (D x H) | 4" x 1.5" (D x H) | 1" x 2" (D x H) |
| Pump Power Needed | > 7 W | > 2 W | > 2 W | > 4 W | > 4 W |
| Soaking Time | 1 Hour | 1 Hour | 1 Hour | 3 Hours | 1 Hour |
| Connector Diameter | 3/16" | 3/16" | 3/16" | 3/16" or 3/8" | 3/16" |
| Application | Pond, Circulation | Fish bowl | Fish bowl, Tank | Circulation | Fish tank |
Compare with similar items
This Item  Pawfly 2 PCS Large Air Stones Cylinder, 4 x 2 Inch Aerator Bubble Diffuser for Ponds, Aquarium or Fish Tank |  |  |  |  |  | |
| Price | $9.88 | $28.98 | $13.99 | $19.99 | $21.99 | $14.99 |
| Delivery | Get it as soon as Saturday, May 11 | Get it as soon as Saturday, May 11 | Get it as soon as Saturday, May 11 | Get it as soon as Saturday, May 11 | Get it as soon as Saturday, May 11 | Get it as soon as Saturday, May 11 |
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| Sold By | Pawfly | Pawfly | Pawfly | Tenyon | Coomatec Intelligence. | Pawfly |
Reviews with images
Decent quality
I opened the box and took these pictures. The packaging looked liked it had been through hell. There were chips of stone missing from the top but it did not affect the power of the stones. They keep everything airated. I’m happy for the price.
Top reviews from the United States
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Top reviews from other countries
Wily Lopez
las conexiones son limitadas para el volumen de aire que esas piedas requieren
Reviewed in Mexico on July 23, 2021Size: 4x2" (2 Pack)Verified Purchase
Daniela Thomas
Used to keep rainwater fresh
Reviewed in Canada on July 4, 2022Size: 4x2" (2 Pack)Verified Purchase
