Trico Zinc Plated Brass 3-D Viewport with Glass Lens, 50 psi Pressure, 1-1/2" NPT Male

A viewport provides an easy to view glass window to see the oil level and condition of the oil within a bearing housing or other wet sump applications. In some applications, baffles make it easier to view the oil level, and also dampen fluid movement. The lens can be removed in the field for cleaning, rather than purchasing and installing a new viewport. Viton Seal.