Oil Sight Glass - Vertical
The standard model supports equipment with access to the drain port to either screw directly into bottom of the reservoir or install an elbow in a drain port located on the side of the equipment.
Oil Sight Glass - Horizontal
If there is not adequate clearance, the horizontal model provides the same functionality but has the ports machined eccentrically to allow the fluids to separate and accumulated water to drain.
Oil Sight Glass - High Temperature
In environments with exposure to temperatures exceeding 160°F on a regular basis, the High Temperature Oil Sight Glassprovides support up to 450°F.
A complete assortment overview can be downloaded here.