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		CO2 Brass Check Valve Availability: Usually ships the same business day Item Code: KL3115 List Price: $38.95 You Save: 3.96 (10%) Your Price: $34.99 Price Range:   Qty:   Details Write a review Email To Friend Avg. Customer Review (3) reviews

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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 (Regulator & Cylinders) from saltwater with a pressurized Kalkreaktor pushing it backward vigorously. Takes 4/6 mm (ID/OD) or 1/8" airline tubing. Customer Reviews Write a review 1 of 1 people found the following review helpful: Excellent! great buy!!! by iamonreeftank Experience Level: Intermediate Posted on 8/31/2007 from NANUET, NY UNITED STATES Comments: a "must have" for calcium reactors, only one very small problem w/ this product - it doesn't come w/ any instructions at all. couldn't really make out the directional arrow at first, had to do trial and error to be sure. otherwise, excellent product. Yes, I would recommend this product to my friends. Was this review helpful to you?         0 of 0 people found the following review helpful: Excellent! so far, free flowing by KURT SEIDLER Experience Level: Expert Posted on 5/25/2008 from CORONA, CA UNITED STATES Comments: I bought a brass check valve to replace one that had locked up, and so far it is allowing gas to flow well. I still want to know why my original valve shut up, as this new one appears to be identical. Yes, I would recommend this product to my friends. Was this review helpful to you?         Similar Items   Product: List Price: Our Price: Rating: Item Code: Description: Aqua Medic Reducing Tee - 12 mm x Airline Tube $11.99 $9.99 AQ9113 Aqua Medic Reducing Tee - 12 mm x Airline Tube Dennerle Bubble Counter for CO2 N/A $34.99