AQUANEAT 4 Pack Air Stone, 3 7/8″ Air Bubbler Bar, Aerator Bubble Diffuser, Air Pump Accessories for Aquarium Pump,Fish Tank, Hydroponics

Amazon.com Price: $6.99 (as of 10/04/2023 03:40 PST- Details) & FREE Shipping.

Widely applicable: Suitable for aquarium fish tanks, helping extend the life of your nutrient solution, keep fish/ roots healthy and promote plant growth
Feature: Create a decorative curtain of tiny bubbles that helps agitate and aerate your aquarium water
Air Stone Dimension: 3.9″ L x 0.8″ W x 0.8″ H; Connector Diameter: 3/16″/4 mm

In Stock.