Fittings for versatile needs 100392307 Industrial Specialties Manufacturing announces its new line of fittings with integrated filters for air, vacuum, or liquid service applications. These miniature fittings/filter combinations offer the engineer options such as an inline filter, which allows the reduction of system components. Fittings are available in straight, elbow, tee, or coupling configurations. Standard products are equipped with 43 micron nylon filtration and nylon bodies. Optional material and colors are available.