VacuTight Fittings are specifically designed to provide optimal, airtight and dependable connections under vacuum and low pressure conditions. Our versatile VacuTight Fittings offers a streamlined profile usable for systems that have a large number of connections in a small area. This Fitting is for 1/16″OD tubing and has a Headless Knurl. It comes in red and a red 10 pack. Brochure