STEEL BACKBOX: Prevents debris and insulation from coming into contact with the speaker. The S-551 meets the UL UUMW standard and is typically used in plenum return ceilings. In open ceiling structures, the backbox may be used as an enclosure for a speaker by attaching the backbox directly to the beam and mounting a speaker to the backbox with the hardware provided. The S-551 must be ordered in in multiples of 5 as model S-551-5.
WARNING:: The plastic used in cable products can expose you to lead and lead components,
chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
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