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      Whether you need medical gas, welding gas and industrial gas, or cylinder rentals and refills, you can rely on Wagner Welding Supply and Metro Medical Oxygen in Longmont to provide what you need when you need it.


      We've been in business for over 70 years. That's why we truly understand how important reliable delivery and industry knowledge are to meet your needs. Our dedicated team at Wagner Welding and Metro Medical Oxygen offers the expertise required to pinpoint and initiate effective solutions for your business. If you're seeking a medical or industrial gas partner you can count on for the long haul, our services are backed by:


      Industry knowledge and expertise that will save you time and money

      A large selection of high-quality medical and industrial gases

      On-time, convenient delivery options in and around Denver, Boulder, Longmont, Loveland, and Fort Collins.


      Check out our complete gas selection


      High-purity gases for your medical facility.
      Reliable gas & reliable service for healthcare providers.



      High-grade gases that get the job done right.
      The quality welders can trust.



      High-purity gases for safety and efficiency.
      Convenient delivery to your business.


      Cylinder Size Chart

      Find the cylinder size that fits your needs.
      Rent or refill your cylinders with quality gas.


      About Us

      For 70+ years, Wagner has delivered quality products and high-purity gases to our Colorado customers. Reliable service and a quality you can trust.

      Get In Touch

      Wagner Welding Supply
      Metro Medical Oxygen
      10 Gay Street
      Longmont, Colorado 80501

      Email Us
      Monday-Friday: 8am-5pm
      Saturday: 9am-1pm

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