Penn Plax Bubble Wall Air Stone 23" Fish Tank
Penn Plax 23" Bubble wall ornament .
Helps create a dramatic mist of healthful bubbles!
Helps create a fine mist of bubbles to your fish tank
Sticks to the side of the glass via the two sucker pads
Aids the level of dissolved oxygen in your tank
Even distribution of fine bubbles
Clear Instructions on the back of the box