- Small ball airstone for pond air pumps
- 50mm diameter with a 4/6mm airline connection
- Creates a small oxygenating air pattern
The Swell Pond ball airstone is a quality, economical pond air stone that will create a good stream of air bubbles. The blue airstone is 50mm in diameter and will accept standard 4/6mm airline.
- 50mm diamater.
- accepts 4mm airline.