Sleeves are not permanently attached to a ferrule so they can easily adapt to varying tubing pocket depths minimizing dead volume. Sleeves are designed to be used with 1/16” OD, 10-32 threaded fittings to adapt capillary tubing to standard coned ports. Sleeves require a wrench tightened nut to achieve proper sealing and withstand temperatures up to 257°F (125°C) and pressures up to 6000 psi (414 bar).