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Continue to ChatBurkert 783289 - DN32, G1 1/4, 13.8 Flow Rate KV, Brass, Light Design, Type TFU002 Check Valve For Water and Air https://www.process-valves.com/product/burkert-783289-dn32-g1-1-4-13-8-flow-rate-kv-brass-light-design-type-tfu002-check-valve-for-water-and-air/