POLIX P430901P122560P4-layer reinforced compressed air hoseHose INTERNAL diameter: Ø 12.5 mmQuality per roll: 25 m* price is for 1 roll of 25m hose *CHARacteristics of layer:Special inner layer of the hose core made of full-grade raw material, which is the sealing of the product (prevents the hose from delaminating).A special outer layer of the hose core that protects the product from algae buildup inside the hose.The cross reinforcement of the hose, commonly known as "reinforcement", made of the highest quality polyester yarn, protects the product from changing the technical parameters of the hose (inner diameter of the product) and increases its resistance to pressure. The thickness of the yarn and the density of the braid is selected according to the type and diameter of the hoses.A special outer layer of the hose (casing) made of full-grade raw material slightly enriched with components that improve its flexibility and resistance to low temperatures. The casing layer is enriched with 3 longitudinal stripes symmetrically distributed around the circumference of the hose..