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Create permanent, leak-free joints in refrigeration and HVAC lines with the Castel Weld Coupling ½″ SAE × Ø 12 mm. Featuring a ½″ male SAE flare for service fittings and a smooth Ø 12 mm socket for copper tube welding, this coupling is machined from premium brass for precise fit and lasting reliability.
Trust Castel’s weld fittings to deliver robust, maintenance-free connections—order your weld coupling today for superior system integrity.