Professionals and serious DIYers, this Breeze CT-500L clamp is the real deal for tough hose connections. It's a 'Constant-Torque' clamp, which means it's smart – it automatically adjusts its pressure to compensate for thermal expansion and contraction, as well as hose 'cold flow.' This prevents leaks that can happen with standard worm gear clamps over time. It has a stainless steel band, hex screw, and special Belleville springs. The 'liner' part protects soft or silicone hoses from getting cut or damaged. The effective clamping diameter range is 4-1/4 inches to 5-1/8 inches (108mm to 130mm). It's torque-rated for 50-125 in/lbs. Built super tough with quadra-lock riveting, it's reusable, corrosion-resistant, and perfect for demanding applications in automotive, marine, or industrial settings. A fleet-proven, reliable solution to stop leaks for good.