Polished chrome stainless steel 12 inch Replacement uPVC letterbox, suitable for 40-80mm door thickness. Grade 304 stainless steel for a great resistance against corrosion. Suitable for all uPVC doors and some wooden doors. A modern uPVC Letterbox finished with high standard polished stainless steel. This stainless steel letterbox has two central lugs at 275mm fixing centres, with 60-80 self-tapping screws. 180 degree flap opening with stainless steel springs used to ensure a strong flip back action when opening. Overall letterbox size is 325 x 78mm.