Galvanised Malleable H-Twin Through Conduit Box Available in 20mm or 25mm Sizes Malleable line conduit boxes conform to BS4568 Finish: Galvanised Deligo H20 Galvanised Malleable H-Twin Through Conduit Box 20mm Malleable galvanised conduit H-twin through box Size: 20mm For use with Class 4 conduit Deligo H25 Galvanised Malleable H-Twin Through Conduit Box 25mm Malleable galvanised conduit H-twin through box Size: 25mm For use with Class 4 conduit
