Simply attach to an air pump with standard airline tubing to increase
oxygenation and water surface agitation in your tanks. This air stone can be
placed under gravel.
Measures 6 x 1.5 x 0.5 inches.
This product also comes in a 10in air stone. Manufacturer: Aquatop See all products from Aquatop Visit Manufacturer's website: www.aquatop.com Airstone 6-inch for Aquarium Aeration UPC: 819603017595