VICI Valco's new 360-µm high-pressure fitting design permits direct connection of 360-micron OD fused silica, PEEK, stainless or electroformed nickel tubing without having to use troublesome liners. Because of the fittings compact size and 2-56 threads, a leak-free connection seals at pressures well in excess of 20,000 psi with the available manual tool. They are available with a PEEK or stainless nut; the PEEK nut is supplied with a glass-filled PEEK ferrule, while the stainless nut uses a 316 SS ferrule.