Hydro Recess mounted WR 73 20 mm WR Doble 73 65 mm WR 74 45-65 mm WR 77 60 mm WR 79 50-500 mm WR-H 79 50-500 mm WR Doble 79 50-500 mm Top mounted WR 76 50-500 mm WR 78 50-500 mm