RNR Poseidon Series 1/2″ (12.5mm) Lifeline


Rock-N-Rescue and Sterling have teamed up to produce an exceptional multipurpose static rope for rescue, treecare, and industrial life safety applications. Poseidon Lifeline’s unique polyester sheath differentiates it from other static ropes. For this new lifeline, we developed an entirely new approach to rope construction—one that makes for balanced elongation in the core and sheath so that they share the load evenly. This makes the Poseidon Series stronger than other 12.5 mm ropes of similar construction while retaining a small but important amount of elongation. This is one of the most durable static ropes available with the handling and knotability you expect from Rock-N-Rescue.

Part Number:


  • Polyester over Nylon with a balanced torque free construction
  • Excellent handling and knot holding characteristics
  • High abrasion resistance
  • Excellent UV protection
Diameter (mm) MBS Rating (kN)
12.5 45.0
Weight (lb/100′) Elongation at 300 lb (%)
7.4 2.5
MBS Rating (lb)

NFPA 1983: General


Additional information


Black, Blue, Orange, Red, Safety Green, Yellow


150 ft. (46 meters), 200 ft. (61 meters), 300 ft. (92 meters), 600 ft. (183 meters), Per Foot



Ask an Expert