Description
The Allegro 9401 Manhole Guard Rail is a high‑visibility temporary barrier railing designed to improve safety around open manholes and confined‑space entry points. Constructed from durable 1‑inch tubular, 0.078‑gauge steel with a safety yellow powder‑coated finish, this guard rail provides a strong physical barrier and excellent visibility on job sites.
Featuring simple one‑piece construction that assembles quickly without tools, the guard rail locks open securely and includes two hooking chains to provide controlled entry and exit. For added safety and flexibility, it accommodates signs, flags, or lights, and can be used with optional accessories such as guard rail tents, umbrellas, and winches
Key Features:
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Durable safety yellow powder‑coated steel for high visibility and long‑lasting use.
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One‑piece, tool‑free assembly for fast setup and teardown.
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Locks open for stability and hooking chains for secure entry/exit control.
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Can be fitted with signs, flags, lights, and compatible accessories.
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Designed to protect an area of 33″ × 33″ and is 42¼″ high (model 9401).






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