AirStones, Bubblers & Valves
Aquarium Pharmaceuticals, Coralife, Penn Plax & Tom

The perfect air stone to maximize the oxygen level in aquarium water. Creates micro-fine air bubbles. Durable ceramic stone, outlasts all other air stones and diffusers. Great for all freshwater and saltwater aquariums.

#37040 - 2 inch Bubbler ~ $3.49
#47049 - 4 inch Bubbler ~ $4.29
#57048 - 6 inch Bubbler ~ $4.79

Limewood is an extremely durable wood, composed of very fine and straight porous grain. Each airstone is specially cut to maximize the number of minuscule air bubbles that are continuously being released into the water. The rugged, screw-in nipple ensures long life under high-pressure conditions created by powerful pumps.

#12226 - 1.25" x .75" Airstone ~ $1.79
#12219 - 2" x .75" Airstone 2-pack ~ $3.24
#12257 - 2" x .5" SlimStone 2-pack ~ $3.19

Aqua Mist air stones.
Can be buried under gravel.

#331015 - 5.5" x 2" ~ $2.10
#331022 - 10" x 2" ~ $2.94
#332067 - 1" x 7/16" Cylinder ~ $0.79

Hagen Plastic Check Valve
- Accurate, leak-proof security
- Protects air pump from back-siphoning damage
- Prevents flooding during power failures

#11165 - Hagen Elite Check Valve ~ $1.99

Penn Plax's Air-Tech red visual regulating valves give you immediate feedback of air flow to each outlet, and its easy-dial controls allow exact changes to air output. Air-Tech also offers other well-designed features, like: a flip-top cover to keep valves clean; an extra input/output for an additional pump or valve; non-corrosive all-plastic construction; and an adjustable hanger which fits any tank. Its top-of-tank location also naturally eliminates back-siphon.

#190070	- AirTech 3 Gang Regulating Valve ~	$4.99
#190087	- AirTech 4 Gang Regulating Valve ~	$5.99
#190094	- AirTech 5 Gang Regulating Valve ~	$7.99

For Small Aquariums - 5 stones per pack.

Oxygen is extremely important to all living things.
OXYGEN STONE 5pk. generates oxygen when immersed in water. It keeps producing oxygen for about one month, enabling you to safely keep your fish in the tank without the use of an air pump!

#11654 - Tom Oxygen Stone 5-pack ~ $7.99