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Made in the USA
IMPORTANT: DO NOT CALCULATE YOUR MEASUREMENT WITH A TAPE MEASURE OR RULER. CHECK VALVES FOLLOW THE NPT (NATIONAL PIPE THREAD) GUIDELINES AND CANNOT BE MEASURED WITH A LINEAR TOOL. IF YOUR ONLY UNIT OF MEASUREMENT IS A TAPE MEASURE OR RULER. PLEASE CLICK THIS LINK BELOW TO GET THE CORRECT PIPE THREAD MEASUREMENT USING A LINEAR MEASURING TOOL.