Hozelock Ultra Tough hose is an extra-thick heavy duty 12.5mm (1/2 inch) diameter hose with braided reinforcement. The ultimate hardwearing hose. An extra-thick construction provides exceptional wear characteristics. Choose Ultra Tough for heavy use applications. Diameter : 12.5mm (1/2") Quality : 4 stars Guarantee : 20 years Wall Thickness : 2.3mm Construction : 2 layers of PVC + 1 layer of braided polyester reinforcement PVC is guaranteed free of all heavy metals.