Single Gases and Multi-Mixes

Buy your cal gas right here, it's so fast and easy.  We offer every common test gas in lightweight disposable cylinders.  Get started by clicking on your target gas in the list below, then make your selections of a concentration and cylinder size.  That's all there is to it.  Most orders ship the same business day.

Buy a Regulator for a 103L/58L Cylinder

Buy a Regulator for a 34L/17L Cylinder

Buy a Carrying Case

Click here for cylinder specifications

Kit 'Er Up
With a Calibration Kit

Create your own customized PortaCal Calibration Kit, a convenient way to keep all your cal gas supplies together.  Build your kit by adding a regulator and a carrying case -- specially priced for a PortaCal Kit. Start by selecting your gas from the list at left. All the parts and accessories you'll need for your PortaCal Calibration Kit are with the gas concentration and cylinder size selections. And we'll toss in a free calibration log.

Multi- Mixes for Confined Space,
Other Applications

When you need a three or four gas mix for calibrating a confined space monitor or other critical application, we have the right gas for instruments from every major manufacturer, including Industrial Scientific, MSA and Tooke Rockies.  Just select the gas you need and go right to checkout.

Click here for a list of all our multi-gas mixes

Other Stuff You Should Know

Federal DOT regulations require us to add a shipping surcharge in addition to regular shipping. These fees are charged per box, not for each cylinder. (A box holds up to 12 cylinders of 58L or 103L gas, or up to 24 cylinders of 17L gas.)

This DOT surcharge will not be shown in your total at checkout. We will email you promptly with final pricing, including all shipping charges, as soon as your order has been processed, usually within one business day.