3400852 – Sealed-Blok (SRL) Self Retracting Lifeline – 30 ft. (9.1m) – Stainless steel lifeline – 3-way retrieval winch – Stainless steel snap hook

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  • Complete seal
  • 30 ft. (9.1m) – 3/16″ (5mm) Stainless steel cable lifeline
  • 3-way emergency retrieval system
  • Swiveling Stainless steel snap hook
  • Reserve lifeline system
  • Ergonomic cable handle equipped with 3M™ Connected Safety ID (CSID)
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30 ft. (9m) of 3/16″ (5mm) stainless steel wire rope with swivel snap hook, 3-way retrieval winch, anchorage carabiner.

  • 100% completely sealed system for harsh environments
  • 30 ft. (9.1m) – 3/16″ (5mm) Stainless steel cable lifeline
  • Swiveling Stainless steel snap hook
  • Saflok anchorage carabiner
  • Large pivoting anchorage loop
  • Reserve lifeline system
  • Cable lifeline replacement system

Sealed SRL's

Sealed-Blok SRL's are heavy-duty self retracting lifelines designed for use in the WORST conditions.

Specifically built to withstand saltwater or any other mucky moist location - they are completely sealed to prevent damage to internal components

  • Sealed Design - ensures efficient & safe operation under all working conditions.
  • Secondary Anchorage Point - Allows for second back up anchorage point.
  • Dual RSQ mode - Allows users to select between fall arrest and descent mode
  • Fast-line - Allows for quick lifeline replacement while out in the field

TD;LR - Sealed SRL's are ideal for use in harsh environments where moisture or tiny particulates can damage SRL's internal components.


Self-retracting lifelines (SRL's)

An SRL is an alternative to traditional shock absorbing lanyards and work a lot like a seat-beat - pull out slowly and extend the line; but don;t you try to run with it.

These devices are specifically designed for professionals who work way up high - stopping falls within inches to allow great mobility.

Real quick - whats an SRL?
  • Retractable lifelines designed to stop a fall within inches.
  • Constantly under tension, but extends or retracts as the user moves up and down.
  • Offers greater protection then a shock absorbing lanyard.

TL;DR - Self-retracting lifelines connect a harness to an anchor and offers great fall protection than a simple lanyard.


Additional information

Weight22 lbs
Dimensions16 × 16 × 16 in
Overall Length

30 ft. (9.14m)


Product Family

Lifeline Material

Stainless steel cable

SRL Application

For vertical use

Lanyard Leg Count


Hook type to structure


Hook type to Harness

Snap Hook


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