At Medical Testing Solutions we provide only the highest quality medical gas fittings and accessories. As distributors for some of the top medical gas fitting manufacturers in the industry, you can be sure you are buying the highest quality product at the best available price. Have questions? You can be sure you are purchasing the correct product every time by utilizing our live chat option to speak with one of our certified medical gas specialists. We offer a wide range of a medical gas fittings among some of the most popular names, such as Chemetron, Ohmeda, Puritan-Bennett, Schrader, DISS and more. These fittings can be found on our website for purchase with multiple options available. Whether you need a 1/4” or a 5/16” hose barb for medical hose applications, or a DISS (diameter index safety system) hand tight nut a nipple, we have you covered! All fittings are all non-interchangeable and are gas specific . Medical Testing Solutions does offer custom gas