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36" x 48" Fire Rated Insulated Recessed Door with Flange - Acudor The FW-5050 is an insulated, fire rated access door approved for use in walls . For walls, this door has an Underwriters Laboratories (UL and ULC), 1-1/2 hour "B" label, with a maximum temperature rise of 250 degrees after 30 minutes. This door should be used in walls when temperature rise or heat transmission is a factor. For fire rated , this door has been approved by Warnock Hersey International for 3 hours (max. size to 24" x ...
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Clik here to view.
36" x 48" Fire Rated Insulated Recessed Door with Flange - Acudor The FW-5050 is an insulated, fire rated access door approved for use in walls . For walls, this door has an Underwriters Laboratories (UL and ULC), 1-1/2 hour "B" label, with a maximum temperature rise of 250 degrees after 30 minutes. This door should be used in walls when temperature rise or heat transmission is a factor. For fire rated , this door has been approved by Warnock Hersey International for 3 hours (max. size to 24" x ...
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