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The D4 Work/Rescue Descender features a unique and innovative cam action, which offers precise control at slow or fast speeds. The progressive cam works by way of one cam operating inside another cam. The D4 is the only ANSI certified descender on the market today.

• Weight: 655 grams (23 ounces)
• Strength: MBS 16kN (3597lbf)
• For use with single ropes from 10.5 - 11.5mm (7/16")
• Working Load Rating (WLL): 240kg (551lbs.)
• Certifications: CE EN12841, NFPA 1983, ANSI Z359

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Petzl Rack Brake Bar Descender, The design and configuration of the bars makes it easy to set up and insert the rope. Compact and lightweight, the device allows the user to adjust the amount of friction during the descent to adapt to changing conditions Learn More

The PIRANA descender offers multiple braking options and can be installed on the rope without removing it from the harness. Designed for use with canyoning descent techniques. Learn More