Any time you are replacing a washer or dishwasher, it's always a good idea to replace the hose(s) rather than using the leftovers from the old unit. Hoses can harden and crack over time, then they blowout or split leaving you with a wet mess. The hose cycles through different pressures under use, which stress the liner. Stainless jacketed hose removes the risk of abrasion and restricts the liner from expanding. Stainless jacketed hoses also look great. This is a good quality hose which will probably last as long as the new dishwasher we purchased it for. If you are doing your own install, you may save a few bucks at the big box store. If you are having it installed by the Geek Squad, they may insist you use their hose to avoid denial of warranty repairs in the event you have product failure caused by a faulty hose. Yes, it's bullsh*t, but along with extended warranties, this is another way stores make money. Anyway, so far no leaks.