Autozone has it in a kit for installing aftermarket gauges. Cost a couple more bucks than ordering through Vans, but saves the shipping and can be had Now. Comes with brass compression fittings as well, 6' length of copper tube.

Sunpro P/N CP7584, you can check local stock on their website. $10.99 around here. They also sell an autometer branded kit of the same thing, but it is more expensive.