Product review (4 stars): Easy to install, with added piece of mind
I would usually turn off the water valves to my washing machine whenever I went out of town for more than a day or two, but now, with these hoses, I think I can skip that precaution. The way these work is that there's a hose inside a hose, and should the inner hose burst, the water will fill up the space in the outer hose, and the pressure will trigger a shut-off mechanism and stop the flow of water. Whether it actually will remains to be seen, but the manufacturer provides a 5-year warranty against failure. Anyway, I found these hoses pretty simple to install. You'll probably need a crescent wrench to loosen the old hose, plus you'll need it to tighten the hose onto the washing machine end. (The instructions explicitly tell you to hand tighten the other end, and to not use a wrench, or you might destroy the sensing mechanism.) The package comes with two hoses, one for hot and one for cold. I was able to remove the old hoses and install the new ones inside of 15 minutes. Seem to work as expected.