Legris 3116 08 00 Nylon Push-to-Connect Fitting, Inline Bulkhead Union, 5/16" or 8 mm Tube OD Inline bulkhead union for connecting two tubes through a panel Push-to-connect metric tube connections on both ends Nylon for strength and flexibility, abrasion resistance, light weight, and resistance to crushing and cracking Handles pressures up to 290 psi (20 bar), operating temperature range of-20 to +80 degrees C (-4 to +176 degrees F), and a vacuum capability of 755 mm Hg Meets RoHS and ISO 14743 technical specifications