Saw this on a certain auction site - anyone bought and used it? I have an Aladdin suitcase stove with a stuck nrv. Already broken a standard tool on it. Soaked it fur days, Unfortunately I don’t have the tools to make my own, and I’m no good at brazing so not confident taking the pump tube out. One end is for Coleman check valves, the other for Primus etc. nrv. If not this one, does anyone know where I could buy a decent tool? Thanks in advance Andy.