- LONG HOSE SET: This set includes three 90cm (35.5") hoses in vibrant red, blue, and yellow, designed for easy identification. The color coding simplifies user experience: red for high pressure, blue for low pressure, and yellow for refrigerant bottles, ensuring you never mix them up. - DURABLE & POWERFUL: Constructed from 10x3ft bonded nylon resin, these hoses are corrosion-resistant, provide low liquid resistance, and can handle high pressures, with a maximum working pressure of 500 PSI. The brass 1/4 inch internal threaded connectors enhance durability and sealing performance. - EASY IDENTIFICATION: The red hose connects the gauge's red 1/4 inch connector to the red quick coupler, while the blue hose links to the blue quick coupling. The yellow hose is designated for connecting to tank valves or vacuum pumps. This clear color coding allows for straightforward assembly and use. - BUILT TO LAST: Made of high-quality copper, PVC, and plastic, these refrigerant filling hoses are engineered for frequent use and resistance to accidental damage. This robust construction makes them ideal for professional technicians and HVAC applications. - PRACTICAL APPLICATIONS: Ideal for air conditioning service, refrigeration maintenance, and automotive HVAC systems, these hoses facilitate safe and efficient refrigerant handling. Whether you're a professional technician or a DIY enthusiast, this hose set meets your needs for reliability and performance. Invest in these high-quality hoses for a seamless experience in refrigerant management and maintenance tasks.