inline Desiccant dryer help

[zoama]

If your looking at a MotorGuard filter unit get an M100 kit, it has 1/2" ports. The M60 only has 3/8" or 1/4" ports.

I agree... The M100 has 1/2" npt ports, the M60 has 3/8" npt ports and the M30 has 1/4" npt ports. Always get the M100 kit since they come with three filters and bush it to the size you need.
All the motorguard kits come with three filters and cost around $75.

[Blaster]

I'm confused here...

I had one of those HF, $2.00, In-line filter/desiccant "things" (red). If I put it in the air supply to my Plasma Cutter (PP256) my regulator reads 60psi and when I activate the torch it's not dropping at All. It maintains 60 just fine. So, how is this not working for me???