CROSS REFERENCE TROUGH TRAY DESCRIPTION > STRAIGHT SECTION STRAIGHT VENTILATED SECTION FITTINGS ITEM > FT VT FTFB90 TRAY DIMENSIONS (HxW) C.8 C.8 C.12 2" x 2" 50 x 50 mm FT 50/50 VT 50/50 FTFB90 50/50 2" x 4" 50 x 100 mm FT 50/100 VT 50/100 FTFB90 50/100 2" x 8" 50 x 200 mm FT 50/200 VT 50/200 FTFB90 50/200 2" x 12" 50 x 300 mm FT 50/300 VT 50/300 FTFB90 50/300 4" x 4" 100 x 100 mm FT 100/100 VT 100/100 FTFB90 100/100 4" x 8" 100 x 200 mm FT 100/200 VT 100/200 FTFB90 100/200 4" x 12" 100 x 300 mm FT 100/300 VT 100/300 FTFB90 100/300 4" x 20" 100 x 500 mm FT 100/500 VT 100/500 FTFB90 100/500 4" x 24" 100 x 600 mm FT 100/600 VT 100/600 FTFB90 100/600 CORRESPONDING COVER FTC FTC FTCFB90 C.30 WWW.LEGRAND.US/CABLOFILhttp://WWW.LEGRAND.US/CABLOFIL