Non Pressure and vacuum Stainless Steel Tanks. When you have a stainless steel tank need, SWHIFT Systems is your company! We can custom build or provide a stock size tank. We can ship to you or to your customer. We can even provide private labeling if you wish! We have been in the stainless steel tank business for the past 24 years. Our facility is equipped with robotics and laser guide technology. This allows us to manufacture the highest quality stainless steel tanks at a very low price! We often ship from one to four days from receipt of order! We offer pressure tanks, non pressure tanks, grey water tanks, compressor tanks, softener tanks, and much more!