Skip to product information
1 of 6

Pawfly

Pawfly Aquarium 8 Inch Air Stone Cylinder for Larger Pump Bubble Diffuser for Outdoor Pond Garden Circulation System and Fish Tanks

Pawfly Aquarium 8 Inch Air Stone Cylinder for Larger Pump Bubble Diffuser for Outdoor Pond Garden Circulation System and Fish Tanks

Regular price $46.00 CAD
Regular price Sale price $46.00 CAD
Sale Sold out
Shipping calculated at checkout.
Pattern Name
  • Produces an abundance of fine bubbles to your farm, pond and circulation system but NOT for aquarium or fish tank.
  • MODEL: ASC200, Jetting Volume: 24L/min, It needs a large pump more than 15 W to run it 24/7.
  • Measures 8-inch long by 2-inch diameter. Uses either 3/16” or 3/8" ID tubing.
  • Net Weight 1 pound, heavy enough to sink into the bottom of pond.
  • Soak the stone completely in water over 6 hours before use. Clean regularly by a brush as they get clogged.

Product Description


As the best Aquarium Bubbler brand chosen by Amazon consumers, Pawfly specializes in providing various shape and size air stones and all must-have aquarium accessories such as Check Valve, Tubing, Suction cups and Splitter etc. to set up your tank.

Premium 8 Inch Air Stone Cylinder

An airstone, whose purpose is to gradually diffuse air into the tank and provide oxygen for fish to breathe, is a necessity to have around your aquarium if you are a lover of aquatic animals. It’s also a must have for Circulation system. Pawfly air stones are made of high quality non-toxic mineral material. With high temperature sintering, stones are sturdy and durable, have high dissolved oxygen rate and create even and tiny bubbles rather than a limited number of large ones.

  • 8 Inch long for large reservoir
  • Delivers lots of small bubbles
  • Works better with larger air pump
  • Sink to the bottom
  • Soak for over 6 hours

What Kind of Airstone Should I Use?

Let’s clarify basic knowledge:

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 globe, disc, or even cube shape. The cylinder shapes can exist in many sizes and colors. Disc shapes can stay steady at the bottom of your tank, while globe ones can produce more bubbles in the same size.


You need an air pump more than 15 W to run this stone.


Soak the stone completely in water about 6 hours before use.


Clean regularly by a brush as they get clogged after weeks or months of usage.
Replace the stone after it stops working properly.

Shape Cylinder Cylinder Cylinder Spherical Cylinder
Jetting Volume 24 L/min 24 L/min 24 L / min 5 L/min 5 L/min
Dimension 2" x 8" (D x H) 2" x 8" (D x H) 2" x 8" (D x H) 2" in Diameter 2" x 4" (D x H)
Pump Power Needed > 15 W > 15 W > 7 W > 4 W > 4 W
Soaking Time 6 Hours 6 Hours 3 hours 6 Hours 1 Hour
Connector Diameter 3/16" 3/16" 3/16" 3/16" 3/16"
Application Pond Pond Pond Circulation Pond, Circulation
View full details