Find Reviews and Compare Prices for:       All ProductsCO2 Products     5.0 (1)   Add a review CO2 Check Valve by Dennerle   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. Price: $0 to $0 Compare Prices at 0 stores Member Reviews Compare Prices Product Spec Send to a friend Searched CO2 Check Valve by Dennerle in Reviews   You must log in to review or click here to register Username:   Password:   Remember Me?     Excellent and has been dependable Installation and Operation Installs very simply, insert tubes and tighten fittings. Make sure you install it in the correct direction. Performance vs. Expectations Performed much better than expectations Value for money Has worked as well as my other check valve from German Air Pressure Systems, which is brass and supposedly the best Liked about it Cost and reliability. Didn't like No mount to hold it Overall rating:   5.0 Overall satisfaction:   5.0 Would consider buying it again:   5.0 By Fat Tony Sep 17, 2009   Ask Fat Tony a question about this item. Was this review helpful to you? Report this review   Price: $0 to $0 Compare Prices at 0 stores     Something wrong in this page? Let us know! Related products: More Dennerle CO2 Products Other CO2 Products internal use: spec436