Single Seal Solid Top Galvanised Covers

300300G5 – Single Seal Solid Top, Galvanised C+F 5T GLVW 300mm x 300mm, 450450G5 – Single Seal Solid Top, Galvanised C+F 5T GLVW 450mm x 450mm, 450600G5 – Single Seal Solid Top, Galvanised C+F 5T GLVW 600mm x 450mm, 600600G5 – Single Seal Solid Top, Galvanised C+F 5T GLVW 600mm x 600mm