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Continue to ChatBurkert 783293 - DN80, G3, 79.4 Flow Rate KV, Brass, Light Design, Type TFU002 Check Valve For Water and Air https://www.process-valves.com/product/burkert-783293-dn80-g3-79-4-flow-rate-kv-brass-light-design-type-tfu002-check-valve-for-water-and-air/