I have a Magnahelic Gauge and IP Pressure gauge setup from Scuba Tools mounted on a Scuba Tools stand. It comes with adapters for various brand hose connections. It also has the universal mouth piece accessory for checking cracking pressure. This setup is in virtually new condition having been used just one time. I think this setup was about $250 when it was purchased several years ago. $140 plus shipping to your doorstep.
Mark
Mark