ISC Squirrel FLEX Tether with Accessory Carabiner

Description

The ISC RT300 Squirrel FLEX Tether with Accessory Carabiner is built for modern SRT climbing systems. It controls rope wrench positioning, reduces slack, and keeps your setup running clean and consistent.

This tether combines rigidity and flexibility in one design. A high-quality kernmantle rope forms the core, while an advanced polymer over-mould adds structure. As a result, the tether stays stiff enough to hold shape, yet still flexes where needed. This balance improves system response during both ascent and descent.

Unwanted slack can reduce efficiency. To address this, ISC designed the sewn eyes to sit tight against connectors. This creates a snug, stable interface with your Rope Wrench. Because of that, the system engages faster and stays aligned throughout the climb.

Visibility also matters during inspections. Therefore, the tether uses contrasting stitching. This makes wear easier to spot and simplifies routine safety checks before and after use.

The tether measures 310mm (12 inches), giving a balanced setup height for SRT systems. It keeps the hitch and Rope Wrench spaced correctly without adding unnecessary bulk. At the same time, it helps maintain smooth transitions between neutral and engaged positions.

Strength sits at 24kN, placing it firmly in professional-grade equipment. This rating supports demanding climbing conditions when used within a compliant system.

Included in the kit is a compact accessory carabiner. It connects your chest harness to the system and helps maintain upright positioning during ascent. Importantly, this carabiner is designed for accessory use only and not as PPE.

The tether is compatible with ISC Rope Wrench systems and related hardware. It integrates cleanly into established SRT setups and supports efficient movement through the canopy.

This setup suits arborists who want tighter system control, reduced slack, and consistent performance from their climbing gear.

Choose the ISC Squirrel FLEX Tether when you need a structured, responsive tether that improves how your Rope Wrench system performs on every climb.