Replacement End-of-Life Service Indicator

This end-of-life service indicator (ESLI) is a qualitative (yes/no) colorimetric indicator for the end-of-service life of the activated carbon in your filter. The indicator is designed to provide real-time indication of the end of service life of hydrogen sulfide filters. When the carbon has become saturated the indicator changes from a blue to a brown color. This part is for replacement of the ESLI in the Wolverine Heavy-Duty (HD), Wolverine Inline (WVI), Wolverine Linear Roof Filter (LRF), and the Super Wolverine (SWV).