Mastercool 72" Hose Set is designed to charge hoses that meet SAE J2196 specifications and are UL recognized. It is tested for working pressure of 600 PSI and burst pressure of 3,000 PSI. The blue and red hose include male 14mm X 1.5 and 5 inch Acme-F fittings. This 72 inch hose yellow with shut off valve and is backed by a 1 year warranty on material and workmanship.