Product Overview 40 Threaded 16 gram CO2 cartridges - 4 boxes of 10 Food Grade Threaded cartridges $ .90 each Free Shipping ! Reviews (1 review) Write a Review 1 Review Hide Reviews Show Reviews 5 Best Deal to be Found Posted by Cameron Scott on 19th Feb 2020 I have been buying these for years. They're excellent for cycling, paintball, cooking, whatever! The threads are well milled and smooth, and the product is reliable. Excellent quality, excellent value.