ExpiredTaicols Air Stone, 12 Pcs Cylinder Bubble Diffuser Airstones, Fish Tank Bubbling Release Aerator, Aquarium Aerator Air Stones

Features:
1. The product is fired at 1500 degrees Celsius with materials such as emery and is safe to use. PVC interface is durable, not easy to adhere to bacteria, not easy to damage.
2. High-temperature firing, high-density and fine pores, uniform air output, large amount of dissolved air, anti-blocking and durable.
3. This bubble diffuser oxygen stone can create beautiful walls of bubbles that not only look good, but also help aerate and circulate the water.

Specifications:
Material: Gravel
Color: Grey
Quantity: 12 pcs
Air Stone size: 25*30 mm/ 1*1.18 inch(Approx.)
PVC interface size:4*15 mm/0.16*0.59 inch(Approx.)

Package includes:
12 x Bubble Diffusers

Note:
1. The greater the power, the shallower the water depth, and the more uniform the venting effect.
2. After long-term use, if the air output is reduced, it can be used repeatedly after cleaning.