Earthing rod clip connection Catalog Number D (in) D (mm) Quantity in the packag Unit price 108021 1/2″ 21 50 15.55 108027 3/4″ 27 50 16.75 108034 1″ 34 50 16.90 108042 1 1/4″ 42 50 20.90 108048 1 1/2″ 48 50 21.10 108060 2″ 60 50 24.60