 Glass bonded diffuser air stones. 2" x 1" x 1" with a standard nipple barb.
With an air resistance of less than .25 psi, these glass-bonded diffusers are compatible with economical low-pressure air pumps.
Manufacutured from the highest quality ceramic available, these air diffusers are machined from a solid block of glass-bonded silica. Because dust and dirt particles up to 30 microns in size will pass right through these diffusers, there's no need for expensive air filters.
They produce a uniform medium/fine bubble and are very resistant to clogging. And when cleaning does become necessary because of a buildup of calcium precipitate or bacteria, an acid bath restores them to like-new performance.
With their round grain pore structure, low resistance to air flow, uniform porosity and resistance to clogging,
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