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The Fragola -4AN port plug is a black hex-style plug sized for -4AN (7/16-20) threads. It serves as a threaded cap for AN plumbing ports, used to seal or protect tapped openings during assembly, testing, or storage. Fragola port plugs are small, serviceable components commonly used by fabricators and race shops to keep systems clean and leak-free when ports are not in use.
Fragola -4AN Port Plug 7/16-20 - Black
