![Bubble Disk](http://www.fishfarmsupply.ca/cdn/shop/products/bd3.jpg?v=1493078221&width=1445)
Bubble Disk
SKU: A985
$6.60
Size: 3" dia.
These unique round air diffusers come in three sizes, each only 1” high with a 3/16” aquarium airline connection on the side. Perfect for aquarium use. Silica diffuser in a plastic frame.
Note: These units do require additional weight to keep them at the bottom.