Material: Hose TPU; Braided With Nylon;
Hose Fittings: Chrome Plated Brass
MAX Working Pressure: 500 psi,

low pressure regulator hose 
Double-braiding resists snags and abrasions flexible
UV resistant
3/8-24Male to 1st stage - 9/16-18 female to 2nd stage.
Nitrox Ready