Ultra-Lok™ Self Retracting Lifeline - Web

Description: 11 ft. (3.3m) of 1" (2.5cm) nylon web with swivel snap hook.


  • Rugged and extremely lightweight thermoplastic housing
  • Semi-sealed design


Ultra-Lok™ self retracting lifelines (SRL’s) are rugged, yet extremely lightweight and superbly engineered devices you can count on for safety, efficiency and comfort. Stainless steel components, an anti-ratcheting brake system and a semi-sealed design provide the user with a system built to last. Our SRLs are backed by decades of proven field service for absolute confidence, safety and reliability. An SRL’s lifeline will extend as the user moves away, and retract automatically enabling the user to move about within a recommended working area at normal speeds. Should a fall occur, a speed sensing brake system will activate stopping the fall and reducing the forces imposed on the user to safe levels.


Rugged and extremely lightweight thermoplastic housing

Compact and durable housing is easy to use, transport, store and is built to last.

Semi-sealed design

A gasket between the housing halves helps prevent contaminants from entering, extending the life of the device.

11 ft. (3.3m) 1" (2.5cm) nylon web lifeline

Reduces overall weight for added worker satisfaction. Cable, web, Vectran™ and Spectra™ rope lifeline options are available for ultimate jobsite flexibility.

Stainless steel dynamic components

The motor spring, fasteners, locking pawls, shaft, springs and rachet plate are stainless steel for added corrosion resistance to extend the life of the device.

Internal energy absorption system

Reduces the forces imposed on a fallen worker to safe levels.

Anti-ratcheting self adjusting disk brake

Stays locked on rigid and non-rigid (horizontal lifeline) anchors for added safety.

Swiveling anchorage point

Stays in line with load for added security and allows use of a variety of standard carabiners.

Self locking swiveling snap hook

Automatically locks and closes for added safety, and swivels to limit lifeline twisting for ease of use.

Impact indicator

A rip-stitch indicator on the lifeline provides a visual alert that the SRL has been involved in a fall.

Reserve lifeline system

Maintains a reserve for shock absorption when the entire lifeline is extended for added safety.

i-Safe™ equipped

Built-in RFID identification tag for recording and storing information on inspections.


Capacity 420 lbs. (190 kg)
Sub Brand Ultra-Lok™
Size 11 ft. (3.3 m)
Velocity Ship Yes
iSafe Equipped Yes
Lifeline Length 11 ft. (3.3 m)
Lifeline Hook Zinc Plated Steel
Lifeline 1" (25mm) wide Nylon Web
Housing Urethane Thermoplatic
Model 3103108
Physical Dimensions 7.60x5.20x2.00 (in)
Physical Weight 4.60 lbs (2.1kg)
Product Styles Single Lifeline
Product Types Standard/Traditional
Housing Type Thermoplastic
Lifeline Type Web
Mounting Type Block to Anchor Point
Weight Group Less than 5 lbs. (2.3 kg)
Standards ANSI Z359.14, OSHA 1910.66, OSHA 1926.502, Capital Safety Gen. Mfg. Req., ANSI A10.32

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