Galvanised Malleable Intersection Conduit Box Available in 20mm or 25mm Sizes Malleable line conduit boxes conforms to BS4568 Finish: Galvanised Deligo INT20 Galvanised Malleable Intersection Conduit Box 20mm Malleable galvanised conduit intersection box Size: 20mm For use with Class 4 conduit Deligo INT25 Galvanised Malleable Intersection Conduit Box 25mm Malleable galvanised conduit intersection box Size: 25mm For use with Class 4 conduit