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What is the spacer bar (support) that needs to be ordered for the 3" and 4" in deep trench duct?
Trench Duct/ Wireway
Support of the 3" and 4" depth Trench Duct over 17" wide
There is no listing for the support posts for 3 and 4 inch deep trench duct in the Digest and only the RSP60 posts are listed for 2 3/8" 3 3/8"deep Trench duct over 17" wide.
Z dividers are used for the 3"and 4" depth Trench duct , RSP60 support rods are not available for the extra depth. P/N is RZD603 for the Z partitions. They come in 5 ft length pieces