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Medium-duty or commercial use extension ladder. External guides at top of base section securely interlock rails. Internal guides on bottom of fly section securely interlock rails. Slip-resistant Traction-Tred on 1-1/2" flat D-rungs. Combination rail shield bracket and show with Shu-Lok and slip-resistant pad. Molded rung braces. Gravity spring locks operate smoothly. Rope clamp ties rope to rung. Mar-resistant molded end caps. Exclusive Alflo rung joint means Twist-Proof performance. Green electrically nonconductive side rails. Rope and pulley on 20' and larger only. Type II duty rating with 225 lb. load capacity. No. D5916-2: 16', maximum working length 13' (no rope or pulley)
No. D5920-2: 20', maximum working length 17'
No. D5924-2: 24', maximum working length 21'
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