Electromagnetic air pump: High quality ZL 102 Aluminum alloy, outstanding heat dissipation performance, surface phosphating treatment, electrostatic spraying, uniform color. No lubricant design, compressed air is purer.

58W electromagnetic motor , flow rate 1189GPH and pressure 0.02Mpa delivers air to the 8 adjustable valve outlets. 100% copper outlet nozzle for long-lasting stable oxygen supply.  

35W electromagnetic motor , flow rate 1030GPH and pressure 0.02Mpa delivers air to the 6 adjustable valve outlets. 100% copper outlet nozzle for long-lasting stable oxygen supply. 

The powerful 18W electromagnetic motor produces excellent air pressure (over 0. 02 mpa) and delivers a large amount of air to the six adjustable valve outlets. 100% copper outlet nozzle for long-lasting stable oxygen supply.  

•  Air pump power 3Watts, maximum air flow 32GPH*2, pressure 0.018Mpa*2, suitable for less 100Gallons tank aeration use.

Aquarium 4"x2" Inch Cylinder Air Stone Fish Tank

• Reliable Material: Made from durable and washable silicon carbide, it causes no effect to the health of your aquatics. Help keep fish or roots growing healthily.
• Stable in Water: Each cylinder measures 2" D x 4" H and weighs 0.8 lbs. It can easily sink to the bottom and stand stably in your tank for steady bubbles.