Magnum Pro high pressure calibration hoses are flexible but will not stretch. Features Will not leakNo stretch for fast stabilizationWorks with any calibrator, gauge, or pump Specifications 10,000 psi working pressure32,000 psi burst pressurePneumatic & hydraulic Distributer ResourcesSmall in diameter (3/16" OD)Any length available Models HK-1 Standard Hose, 1/8" NPT male x 1/8" NPT female 2'long.HK-600 Standard Hose, 1/8" NPT male x 1/4" NPT female 2' long.HK-4F-MM-3 High Pressure Hose, 1/4" NPT female x mini mess female 3' long.HK-4F-MM-5 High Pressure Hose, 1/4" NPT female x mini mess female 5' long.