The Fieldpiece Vacuum Hose - 3/8 inch x 3/8 inch is a rugged and reliable tool designed for HVAC professionals. Featuring robust full-ring triple crimp fittings, it ensures secure connections for efficient vacuum operations. This hose is compatible with A2L refrigerants, meeting modern safety standards with a working pressure of 800 psi and a burst pressure of 4000 psi. Its 4-layer construction and permeation barrier, compliant with SAE J2196, effectively prevent refrigerant leakage, making it an essential component for precise and dependable refrigerant evacuation and system maintenance tasks.