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Regulator check valves fit on the end of the regulator before the welding hose. They prevent the reverse flow of gas back through the hose toward the tanks. This is a necessary safety measure since most cutting torches as sold without check valves on them to make the price more attractive. These are "B" sized check valves for 3/16, 1/4, 5/16 and 3/8 twin welding hose.
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🇺🇸 Ship from USA · On Agora since 2025
$25.95