This is a nitrous fill station pump that I purchased from Cold Fusion Nitrous for $675. It comes with a welding cart that I used to hold the mother bottles and the pump was bolted to the cart.

This is a nice quality pump, unfortunately I found out after the fact that the nitrous filter needed to be placed before the pump and not after and one of the seals inside went bad because of it. I was halfway through my second 55lb bottle when the seal went bad.

The rebuild kit is $37 from Gulf Controls in Tampa.

I'm asking $200 with no cart, $240 with. I would like to sell this quick so feel free to make an offer.