Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy. 
Dynabrade 95675 1/4" Male Plug with 1/4" NPT Male Thread 
Dynabrade 94980 1/4" Composite-Style Coupler, 1/4" Male 
Insize 4130-20, METRIC THREAD PLUG GAGE, M20x2.5, 6928640340109
$62.04
Supplied with Go and No-Go gages together.
Class 6H.
Standard ISO1502.
Supplied with manufacturer inspection certificate.
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