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Air Stone Difussers Product #106CN Price: option 6" airstone [$12.56] 9" airstone [$15.26] 12" airstone [$18.86] 3/16" hose adapter [$1.35] Qty:

Alita makes one of the best air diffusers available anywhere. They are 1.1" in diameter with a rubber bumper on each end and vary in length. Extremely durable and washable (reusable) air diffusing media made with brown Adamantine Spar (corundum/alumina) under ultra high temperature and pressure.

Suitable for koi pond, fish hatchery, aquaculture and aquarium applications.

Fitting Sizes:
1/4" & 1/2" barb, 1/2" MPT and 1" spigot