Smooth BoreU30-AP Smooth Bore is a clear all thermoplastic polyurethane flex hose with yellow reinforced ABS helix. U30-AP has a smooth interior and is lightweight. Clarity of hose allows easy visual check for blockages. External ABS (non metal) helix provides added durability in applications where hose is being dragged.25' lengths onlyClick here for Tech Data on U30-AP Flexible Hose