The CSFC1818 is an oversized flush cover panel for a 18 x 18 in CS or CSKO Series screw cover junction box. It is designed for flush mount installation requirements, where the box sits recessed and a larger cover is needed to finish the opening. Electricians, contractors and facilities teams use it to close off a flush-mounted box with a single painted steel plate. The CSFC1818 is the largest 16 gauge cover in the range, fitting an 18 x 18 in CS/CSKO box with a 19.50 in square panel.

The panel is made of 16 gauge steel and painted ANSI 61 gray, the steel/gray finish named in the part description. Its thickness is listed as 0.06 in (2 mm).

Actual size is 19.5 x 19.5 in (495 x 495 mm) against a fits-box size of 18.00 in H x 18.00 in W (457 x 457 mm), consistent with the series note that CSFC covers are 1.5 in taller and wider than standard covers. The part page lists a size of 19.5 in x 19.5 in x 0.06 in (495 mm x 495 mm x 2 mm) and a shipping weight of 9 lbs (4.08 kg).

Boxes are sold separately, so order the CSFC1818 together with the matching 18 x 18 in CS/CSKO enclosure. The cover is REACH and RoHS compliant, ships in a bag and is identified by UPC 623980561233 and UNSPSC 39121302.