[ SPECIFICATION ] Material: Ceramic; Size: 130mm x 130mm x 43mm/5.12" x 5.12" x 1.7"; Bladder Stone Diameter: 100mm/4"; Connectable Tube Size: 4 mm / 0.16"; Suitable for aquarium depth: 900-2000mm/35.4"-78.7"; Output airflow: 3L/min. [PACKAGE CONTENTS] 1x 4 inch Air Disc Stone, 1x control valve, 1x suction cup, 1x air control valve, 1x T-piece and 1x 3m long oxygen hose. < p>[ MATERIAL ] The base of the air stone is made of high temperature fired ceramics, it has high hardness, wear resistance and certain weight. It can automatically sink to the bottom of the aquarium and will not be moved to other positions by the fish. [FUNCTION] The 4 inch disc air vent can only be compatible with 4mm pipe, and the air stone can be used in both freshwater and saltwater environments.The atomized air stone can be powered by an air pump of 2 watts or more (if the water depth is more than 40cm, you need m possibly a higher capacity air pump).
