Uniweld H4SMBEY 48 IN. (120cm) SOFT MAGIC BARRIER ENVIRO HOSE, YELLOWA rugged nylon barrier hose for CFC, HCFC and HFC refrigerants with an adjustable threaded valve core depressor. The maximum working pressure is 800 PSI with a burst pressure of 4000 PSI. Color coded red, yellow and blue. 2-year over-the-counter replacement warranty. Available with and without anti-blowback fittings.