VIVOSUN 4-Pack Air Stone Discs With Shell & Sucker – For Hydroponics, Aquarium Tanks Up To 50 Gal

If you're running a hydroponic system or just want better oxygen in your aquarium, these VIVOSUN air stone discs are perfect.

You get a 4-pack, each one comes with a protective shell and a suction cup to hold it in place.

They're designed for tanks up to 50 gallons and work in all water types—fresh or salt.

Just hook 'em up to your air pump and watch those fine bubbles go to work.

They're brand new, never used.

Great for keeping roots healthy in hydro or giving your fish that extra oxygen boost.

Simple, effective, and VIVOSUN quality.