ITEM NAME:Gray Round Shape Air Pump Airstone for Aquarium Tank Fish C1U4 Gray Round Shape Air Pump Airstone for Aquarium Tank Fish C1U4 Aquarium Airstone Main Color : Gray Material : Mineral Stone, Plastic Stone Size : 4 x 1.5cm/ 1.6" x 0.6"(D*H) Outlet Hole Dia. : 3mm/ 0.12" * It is for freshwater, saltwater aquarium and hydroponic use. * It’s used to increase the dissolved oxygen level in the aquarium. * It produces fine bubbles making it efficient in the replacement of Oxygen in fish ponds, tanks or hydroponic systems. * Weight : 28g * Package Contents : 1x Aquarium Airstone,1 x Straight Pipe Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
