Eclipse peepsight assemblies can be used for various combustion needs. The single piece units are designed for installation on a burner.
The 2/3 union assemblies may be installed on or adjacent to a burner or the wall of the application itself.
Blast gate peepsights are designed with a sliding gate to isolate the peepsight from the furnace and are used on the appliance wall.
The rectangular peepsight assemblies are designed for mounting in a duct or for use as a furnace viewing port.