Caplugs PDE-4 Plastic Threaded Plugs for Flareless Tube and Nut Assemblies
$5.45
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Knurled for ease of application, plugs are designed to fit MS-21921 tube and nut assemblies interchangeably. They can be installed with light finger tightening to seal beyond normal requirements.. Low-Density Polyethylene material with Red color.
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