19350 Robinair 36" Blue Double Quick-Seal Enviro-Guard Tank Hose R134A. Enviro-Guard Hoses for Automotive R-134A. Enviro-Guard Hoses are constructed of special barrier material which prevent virtually any permeation of refrigerant, yet remains flexible. Double Quick-Seal Hoses prevent any gas leakage when removed from their fittings from either end. Meets all specifications for low permeation construction. Clearly marked for R-134a. 740 psi working pressure, 3700 psi burst pressure.
