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Continue to ChatBurkert 783276 - DN15, G1/2, 5.8 Flow Rate KV, Brass, Heavy Design, Type TFU002 Check Valve For Water and Air https://www.process-valves.com/product/burkert-783276-dn15-g1-2-5-8-flow-rate-kv-brass-heavy-design-type-tfu002-check-valve-for-water-and-air/