Marshall Excelsior METL051 Serviceman's Friend Test Fitting - 1/8" MNPT
0606.1400
$28.10
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The Serviceman's Friend eliminates the hassle of carrying numerous bushing and fittings to each job site. It has three threads on one end with a hose barb and an 1/8" MNPT on the other end. A hose can easily be attached to either end and can be connected to a manometer or other flow meters to check line pressure on an appliance.