I have a Nitrous Express kit

15 lb NX bottle
NX purge
NX bottle heater
MSD window switch with pills
all wiring and relays
bottle brackets
Nitrous gauge
2 main nitrous lines
4 feed lines 24"
2 feed lines 36"
all sizes of jets
multiple switches

 

Is tha guage electric or mechanical? There's a lot of good stuff right there.

 

the gauge is mechanical, for on the bottle.
So what do you think i should sell it for?