Where can you buy NI-712?

If you are looking to buy in bulk, contact Neutron Industries and talk to a sales person. A case of 9 bottles of 16 oz NI-712 will be $199.99 plus sales tax and shipping & handling.

If you want to buy single bottle (or mix and match), you can either do a search on eBay or Amazon, and you will find good deals even if you don't buy in case quantity.