Specification: Origin: Mainland China Item Type: Air-conditioning Installation Model Name: Air Conditioner Gas Charging Hose Item Weight: 190 g Material Type: Rubber Service: tank valve + hose + gauge + quick coupling integrated car air conditioner filling hose for R134a. Vehicle connection: only for M14 Screw-134a (R134a) compatible low pressure 0.5 (13 mm) coupling. Length of filling hose: approx. 40 cm/15.8inch Compatible cooling media: R134a Inflatable hose: for simple air conditioning gas filling. Gauge guide: Watercolour: re-charging required due to lack of refrigerant Blue: Suitable for refrigerant No re-charging required Yellow: too much refrigerant charge Do not refill. Red: Too much refrigerant charge Proper maintenance is required. *May vary depending on the vehicle or air conditioning system. Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 xAir Conditioner Gas Cooler