Kordon "Mist-Air" (Bonded Glass Bead) Coarse Airstones can be connected by standard 1/4" OD flexible tubing to any regular aquarium pump - from the smallest single-tank vibrator pumps to the largest commercial units for hundreds of aquaria. The clear stiff airstem tubing in the Mist-Air airstones is press fit into a tapered opening in the body of the airstone. The airstem can be removed by pulling it out with a pair of pliers, provided caution is taken when handling the airstone so as not to break it. If there is air leakage around the base of the airstem, the airstem can be pressed deeper into the airstone or be pulled out and replaced. For taller aquariums the user may prefer to obtain a longer length of stiff tubing - attaching it to the Mist-Air by a short length of flexible tubing, or attaching it directly to the Mist-Air in place of the short airstem.

Dimensions:
Airstone length: 1.0" (2.6 cm)
Airstone diameter: 0.5" (1.3 cm)
Density: 1.6 grams/cc
Flexural strength: 2000-4500 psi

Kordon "Mist-Air" Coarse Airstone is the rugged general purpose airstone with a number of advantages. It is the easiest of the three grades to clean. Its largest bubble size is the best to remove gases (such as carbon dioxide) from the water. It is the best airstone for air columns of undergravel filters because it lifts the most water.