Lookin for a good used Sure Shot can that you put a liquid in and then pressurize with an air chuck. I need one for filling with light oils and what not after the aerosol cans they came in run out of propellant. The new ones seem a bit pricey...
HF has a cheapie if your going that route, my Hudsons have worked great and you can get replacement parts that will be needed down the road. Nothing lasts forever!
