I bought a brake valve like this from inlinetube. The line/fitting on top leaked. No matter what I tried. Called em up. "I bought this valve and line from you, it leaks" First it was oh use a socket to get it seated correctly and I was, this is your parts, all bought from you, it leaks, send me a new one. No send us pics so we can see how it seals and if we determine it is fine its your (me) problem. Only 1 in a 100 leak. Perfect reason to send me a new one. Wait a minute, this is a cheap 4 inch line, your not sending a new one? No. Okay I'll pay shipping? No. If everyone who complained got a new piece we'd be outta business. I had to buy one, all of $15.00 shopped.