This R134A refrigerant charge hose comes with Gauge for easily viewing during use. Used to add R134AR12R22 refrigerant to vehicles with excellent performance. Easy to use, it is equipped with a gauge and easy to view when in use. The outer circle is a rechargeable kilogram in KG/CM2. The middle circle is the supply pressure, the unit is PSI. Long service life, stable performance and convenient installation. Item Type:Air-conditioning Installation Condition: Item Type: Refrigerant Gauge Hose Application: Universal Port Specifications: 1/4inch SAE Port Pressure Gauge KG: -76-17.5 Kg/cm² Research Pressure: -30-250PSI Name:Refrigerant Gauge Hose With Gauge Colour:Blue Material:plastic+metal Package Contents: 1 x Refrigerant Gauge Hose With Gauge 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.