This gives installers a visual indicator that lets them hand-tighten the devices without tools, torque specification, or guessing what constitutes "finger tight." Fittings are preassembled and come with a standard 1/4-28 thread size in nine different colors for easy connection coding and identification. Custom configurations are available. The company says when paired with its Flared Tubing Assemblies, the fittings produce a continuous, fully swept fluoropolymer fluid path with a consistent internal tubing diameter in sample, reagent, wash, and waste lines.