Adapter fittings are manufactured to be threaded directly into standardized NPT 1/8" mates. The Open Flow path enables a quick connect and disconnect between fluid and pneumatic lines. Acetal is a lightweight, low-friction, and wear-resistant material that is medical grade and sterilizable. O-rings made of Buna-N offer good resistance to water, basic oils, lubricants, some fuels, and many pneumatic and hydraulic systems. These Non-Magnetic springs are made from non-ferrous metals and are rated MRI conditional. Size 2 fittings are designed to accommodate tubing that measures 1/8" or 3.18mm (ID).