The 3MTM DBI-SALA Sealed-BlokTM Self-Retracting Lifeline (SRL) incorporates a patented concept that helps separate components, such as the motor spring and brake, from foreign elements such as grease, moisture, and dirt. The 3MTM DBI-SALA Sealed-BlokTM Self-Retracting Lifeline is IP-69K rated to provide protection against ingress of dust, high tempeatures, and high pressure water, for use in extreme environmental conditions. These lifelines are available in Overhead, Retrieval, and RSQ / Rescue SRL configurations.