My plastic 4x4 Auto-Lock vacuum lines were crumbling and falling out as they often do, so after some research I decided to replace them with steel. I bought this reel for this purpose. After 10,000 km I am very satisfied with this product. It's very malleable (slightly stiffer than copper) and easy to cut and install. As for durability, there is no rust yet. Let's see. All in all I would say that this line is excellent IN CONNECTION with how I have used it. Your mileage may vary.
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