I think i know what your talking about. Basilcally make a propane delivery device that is much more simple than the one at the top where i can get an accurate measure of the ID of the meter pipe. The one shown is all different sizes throughout the device with will give you an inacurrate ID. The one ...

Hello everybody... This is my first post and I have a few questions. I have two potato cannons, they both run on hairspray right now but i would like to convert them to propane. Here are the specs for the two of them.

<u><b>Cannon 1</b></u>

Fuel Chamber- 4" sch-40 that is 2' long with a pressure ...