When I went to buy my first can, I emailed the company to get some, as none of the local dealers had it. The president of the company answered me back! He said they didn't sell direct, but I should be able to get it from Amazon.
I have a Bissel Green Machine hot water extraction set up, and the water pump was frozen. Probably rusted. I propped the machine on it's side, with the inlet hole for the pump facing up. Squirted good dose of Jack spray in there, let it soak for 2 days. Went back and the dang pump started up on the second try! Stuff is amazing! And not toxic and giving me headaches like old WD-40 did.