These convenient line clamps are designed to pinch off fluid hoses, making it easy to remove and replace components without draining the entire system. Each line clamp is specially designed to stop flow without damaging or compromising the hose. ▪️Specially designed to stop flow without damaging the hose ▪️Sizes: 3/8 in., 1/2 in., 1 in., 1-3/4 in.