Yellow Jacket 49517 3-1/2" L/F °F, Red Pressure Gauge, 0-500 Psi, R-134A/404A/407C

Offset stem fits all major manifold brands Now with zero adjustment 1/8" NPT Male connection Temperature rating of 0° to 122°F (-18° to 50°C) Calibrated to 1% accuracy (Class 1) Made in the USA