Dynabrade 94990 1/4" Female Composite-Style Coupler with 1/4" Male Plug Assembly 
Dynabrade 95684 1/4" Male Coupler 
Insize 4644-1N8, NPT THREAD PLUG GAGE, 3-1/2x8NPT, 6928640346927
$670.65
NPT THREAD PLUG GAGE, 3-1/2x8NPT
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