20mm OD X 6" Long Sintered Stainless Steel Carbonation Stone, 2 Micron Pore

20mm OD X 6" Long Sintered Stainless Steel Carbonation Stone, 2 Micron Pore Size. 1.5" Tri-Clamp Fitting with 1/4" NPT CO2 inlet.

arbonation Stone ¾'' x 6'' Tri Clamp w/ ¼''NPT

• 1-½'' tri-clamp connections to tank
• ¼'' female NPT gas connection
• ¼'' NPT fitting Female
• ¾''x 6'' 20mm Diffusing Stone
• 2 micron Porosity
• SS316

Sanitary designed for tank mounting. The most efficient system on the market for carbonation. Submersing porous body diffuses CO2 gas directly into liquid to create carbonation.

 http://www.porousfilter.com/index.php/product/index/id/181.html