The ROYAL Conduit is a plastic spacer tube through which the Z bar feeds. Grout is prevented from entering the tube, allowing the Z bar to be easily removed when stripping the forms. They are supplied in full lengths and are cut down to the wall’s thickness and a cone is attached on each end. Tubes have an O.D of either 25mm or 27mm. The 25mm tube uses the plastic push in-and-fit cones whereas the cone fits on the outside of the larger 27mm tube.