Airstone Disc 4mm

Product Description

These round ceramic discs are designed at the highest quality and work as profoundly effective air stones. These fit perfectly with 4mm Airline and 8mm and are great for aerating nutrient solution.

Specification

• 10cm (4inch) – Use 4 or 8mm
• 15cm (6inch) – Use 4 or 8mm
• 20cm (8inch) – Use 8mm only