Calcium Reactors, Kalkwasser Stirrers and Supplies

Dennerle CO2 Check Valve (Item Currently Unavailable) Item Code: NAWSDE1111 A very high-quality German CO2 check valve for freshwater or marine applications. A mid-level & mid-priced, quality check valve between the Metallic and the Plastic units. Takes 4/6 mm (ID/OD) or 1/8" airline tubing. Quantity :  $CAD 37.99