This is a great tool set for refrigerant testing, charging and evacuation. Can be used on all car A/C, commercial and domestic A/C and refrigeration systems. Gauges are marked for R12, R22, R404A and R134A pressure reading. Color-coding on gauges, valves and hoses for convenient operating. New quality, Replace directly to your device Manufactured according to quality control standards, not easily damaged and has a long service life Stable performance and high reliability, perfect replacement for your old products Please check all pictures and compare with your used parts to make sure it will fit Manifold are 2-way and made of brass. Hoses working pressure: 500PSI Burst pressure: 2500PSI Working temperature: -20 to 60 Colour:Photo Color Material:copper type:2: 1 x conversion head Package Contents: 1 x double watch 1 x auto connector 1 x conversion head 1 x bottle opener Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.