Best Dairy-Free Shortening. Shortening is an even fattier form of butter. Where butter is made with about 85 percent fat and 15 percent water, shortening is 100 percent fat. For those who can't tolerate lactose, there is a dairy free version of this ultra rich spread.
For example, the standard aluminum 80-cubic-foot tank weighs about 35 pounds, while similar capacity steel tanks weigh in at about 30 pounds. There have been lengthy discussions about the service life of steel tanks vs. aluminum tanks.
Tank Fill Calculator. Please complete all of the fields and then press the Calculate Fills button to determine how many fills you can get with your airgun. Then press the Compare button to compare the number of fills with a standard 80 cu. ft. scuba tank with a 3000 psi working pressure to see the advantage of the carbon fiber tank.