SMC DOT Plug-In Expander


The SMC DOT Plug-In Expander or Increaser allows people step up from 1/4" line to 3/8" line without changing fittings. These fittings are typically used in manifolds that already have PTC fittings - manifolds such as Air Lift V2 / 3P / 3H or AccuAir VU4. This is the easiest way to increase your line size from 1/4" to 3/8" without changing your entire manifold setup!

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