FAQ

The Elite Gas Supplier for New England

Frequently Asked Questions

Top FAQs

Want to find out more about how to order a specialty gas from Middlesex Gases?  Need help deciding between Bulk or MicroBulk gas systems?  The answers to these questions and more can be found below. 

Commonly asked question, with a simple explanation. See our Pressure Builder Use Guide.

Set the pressure builder on the dewar to the desired pressure and open the pressure builder valve. See our Pressure Builder Use Guide.

Contact our inside sales team by email or by phone at 800.649.6704.
Our great service remains uninterrupted since our founding in 1949, and all of our locations are open for business but with some restrictions for visitors. Give us a call before you stop by at 800.649.6704 and we’ll make sure your visit is safe and convenient.
Yes! We offer CO2 cylinders from 5 – 50 lbs at all five of our locations. Give us a call at 800.649.6704 and we’ll direct you towards our closest branch.
Yes! Middlesex offers an online shopping portal for established customers. Give us a call at 800.649.6704, or submit a contact form on our website to sign up.
Yes! Gases and Regulatory equipment are our specialty. Our Life Sciences Support Specialist, Chris Powell, will be happy to help. You can reach him by email or phone at 508.316.2052, or submit a contact form on our website.
Give us a call at 800.649.6704 or send an email to sales@middlesexgases.com and we’ll be glad to get that cylinder out of your way.
Great! Give us a call at 800.649.6704, or submit a contact form on our website and we’ll have the appropriate representative contact you right away.
If you are using 1000L of Ln2 per week you just might be! Contact Ron Perry, our Director of Sales by email or submit a contact form on our website and we will contact you right away to discuss your options.
Our Life Sciences Support Specialist, Chris Powell, will be happy to help. You can reach him by email or phone at 508.316.2052, or submit a contact form on our website.

Ron Perry, our Director of Sales, will put you in touch with the right representative. Send him an email or submit a contact form on our website.

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