Originally Posted by acrylic51
I use the inline TDS meter, but also have a handheld unit to double check against the inline......As far as pressure gauge is concerned, I would say it's worth it.....The Typhoon III should come standard with that. It's a good indicator as to how the unit is functioning......
I was looking at the photo on the web site and the T -III did not show a pressure gauge.I guess I have to give them a call.Thanks