Product review (2 stars): Not for laundry, but great for hot water heater descaling!
Do not buy these for a laundry machine, pony up the extra $ and get stainless steel braided lines, you will never regret it. Take it from someone who has had a rubber line burst in their house.

Now for my purpose I used these to descale a Rheem tankless hot water heater. If you are going to submerge the end of the return hose in vinegar i would suggest you cut off the metal fitting since it will react with the vinegar and turn the fitting black and the vinegar green.