Breeze CT-450L Heavy Duty Constant Torque Liner Clamp with Stainless Screw Effective Diameter Range: 3-3/4" - 4-5/8" (95mm - 118mm) Torque Rated 50-125 in/lbs Stainless Steel Hex Screw, Spring and 5/8" (16mm) Stainless Steel Band Patented, pressure compensating clamping system Designed to self adjust to thermal expansion and contraction Custom designed Stainless steel Belleville springs. Heavy duty construction stops fluid leaks