It´s our hose for domestic use and irrigation of garden and otherhousehold tasks. It has 4 layers and is made of flexible PVC, with braidednylon reinforcement that allows it to have a resistance of up to 150psi.Resists external weather so it can be use and kept outside. We manufacture themin internal size of 5/8". All have aluminum couplings that are rust free.The hose is identify by having a grey cover