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RIB&#174; Sub-Panel SP4403L, MH4400, Polymetal, 16.875"H x 15.75"W x .13" Thick Two types of sub-panel material are available polymetal and perforated steel. Both the polymetal and perforated steel subpanels are UL accepted for use in plenum and designed to mount in model "MH" metal housings and the mounting holes are pre-drilled, ready to install. Sub-panels can be ordered pre-installed in your choice of "MH" enclosures. See the general specifications for pre-assembled enclosure kit model numbers.

RIB&#174; Sub-Panel SP4403L, MH4400, Polymetal, 16.875&quot;H x 15.75&quot;W x .13&quot; Thick

sub-panel-sp4403l-mh4400-polymetal-16875h-x-1575w-x-13-thick

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