Allegro 9400-24 Manhole Sign is a high impact poly carbonate sign that fits underneath the manhole cover to serve as a reminder to workers to follow proper confined space procedures. The innovative design has ventilation holes to allow air to pass through which also letting water to drain in. These holes also allow you to use instrument probes without having the remove the sign from it's current position.
Manhole Warning Barrier Sign
Manhole Sign Meeting OSHA’s confined space warning requirements by reminding workers to follow proper confined space procedures, these high impact poly-carbonate manhole warning barrier signs fit under the manhole cover. The clear material offers a view into the manhole, and ventilation holes allow air out, and water to drain in. This manhole warning barrier also allows use of instrument probes without removal. Available in two sizes.
Place this manhole sign directly under the manhole cover to remind workers to follow proper confined space procedures. Made of high-impact poly carbonate.
* Custom sizes and signs of our manhole warning barrier are available with volume orders.