All customers who wish to take out cylinders, rent equipment or buy merchandise on credit must first fill out and sign a credit application. Click here to download our credit application. Completed application can be faxed to 410.354.4894, mailed or hand delivered to our location at 5110 Curtis Avenue, Baltimore, MD 21226. We will begin processing applications upon receipt. To speak with our credit department, please call 410.354.0700 and ask for Lynn.