A closed-wall corrugated conduit in PA6 nylon that seals a wiring run against water, dust, dirt and vibration. Fits engine-bay looms, chassis and underbody runs, caravan-to-tug leads and marine helm wiring where the harness gets exposed and needs to stay sealed for the life of the install. The corrugated profile bends around chassis rails and through tight spaces without kinking, and the continuous wall carries an IP68 rating (dust-tight, sustained submersion capable). Resists engine oils, solvents and common workshop chemicals. Continuous operating range runs from -25°C to 80°C with short-term exposure up to 150°C, and the PA6 is self-extinguishing and halogen-free. Cables feed through end to end before termination; there is no slit down the side to pop wires in mid-run later. For a loom that will need wires added or removed after install, use split loom tube. Sold per metre. Need mid-run access instead? If you need to slot new wires into an existing loom without pulling everything apart, the split alternative is better. The slit down the side lets you push cables in mid-run: [split-loom-tube]