Aquascape Pond Air Replacement Aeration Disc 4-inch 75005, Gray Price: $10.38 (as of 02/01/2024 23:51 PST- Details)

Replacement Aeration Disc is used in conjunction with an aerator or air pump to help provide proper aeration, improving water quality and fish health
The disc can be anchored or concealed with small rocks or gravel, making it easy to set in your desired location
The durable outer plastic housing prolongs the life of the disc and the disc accommodates 3/16-inch tubing