Wooden Air Stones
Wooden Air Stones create a cascade of healthy fine bubbles with very little pressure loss. Each air stone is cut against the grain of the wood to allow the maximum production of fine bubbles. Fits any standard 4mm airline tubing and suitable for fresh or salt water aquariums. These are a good choice for air driven protein skimmers and other applications
Size (mm): 45 x 20 x 20
This is for a set of 3 wooden air stones.