Find the lowest price for:       All ProductsCO2 Products     5.0 (1)   Add a review CO2 Brass Check Valve by German Air Pressure Systems   These are the highest quality industrial-grade Brass Check Valve from German Air Pressure Systems. They are heavy-duty enough for food-grade liquid as well. Just like you, we also thought that these were unnecessarily overkill for aquaristic purposes, but it has been proven that these are the ONLY qualified Check Valves for protecting your expensive CO2 equipment ... Price: $0 to $0 Compare Prices at 0 stores Compare Prices Product Spec Member Reviews Recommend to Friends Searched CO2 Brass Check Valve by German Air Pressure Systems in Reviews   You must log in to review or click here to register Username:   Password:   Remember Me?     Works great Installation and Operation Insert tubing and tighten fittings, can't get any easier. Make sure that you install it the correct direction Performance vs. Expectations Performed as expected. Value for money Made of brass and is very dependable. Liked about it Dependable and well built Didn't like Cost, but you pay for quality 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 German Air Pressure Systems CO2 Products Other CO2 Products internal use: spec549