The barb-end was my problem too as my mesh-covered hose has a 3/8" FNPT connector. I had thought I could just pop into a hardware store and grab a 1/8" ball valve that's FNPT on both ends, then use the flare adapter that came with the hose (3/8" down to 1/8"), but that doesn't appear to be a very popular size. Have to order one to the store or roll the dice on a shady-looking seller on Amazon.