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The Peterson Fluid Systems 5/8-18 to 1/8 NPT female fitting converts a 5/8-18 temp-style opening to a 1/8 NPT female thread for sensors or auxiliary lines. Backed by Peterson’s tank and accessory heritage, the fitting provides a sealed, tapped transition for instrumentation in oil and fluid systems. It lets installers add NPT-threaded sensors without modifying primary port hardware.
Peterson Fluid Systems Fitting 5/8-18 x 1/8 NPT Female
