Lumb Bros Hi-Grip Stainless Steel Cylinder / Tanks Bands Principally aimed at the marine, food, petro-chemical and pharmaceutical industries, the Hi-Grip 316 hose clip is made entirely from BS316 (A4) austenitic stainless steel, providing  superior corrosion resistance. Hi-Torque clamps hold Lloyd’s Register Type approval for applications in the marine, offshore and industrial markets. Optional: Tank Band Rubber Protector Strips should be used to prevent Electrolitic Corrosion particularily with Aluminium cylinders. If required add 1 X 50cm protective rubber strip per band to your order. Sizes 90 to 120mm for 3L and 4L Steel and Aluminium Pony Cylinders 130 to 160mm for 5L and 7L Steel and Aluminium Cylinders 170 to 200mm for 12L and 15L Cylinders