Mishimoto'spring Clamps are a no-frills solution for clamping small, low-pressure hoses. This 0.49in - 0.54in (12.4mm - 13.7mm) spring clamp is ideal for vacuum lines and low-pressure coolant lines. These clamps can be installed and removed easily with only a pair of pliers, and the spring-style design means they maintain pressure through wide temperature swings. As with all our clamps, this 0.49in - 0.54in (12.4mm - 13.7mm) spring clamp is backed by our Mishimoto Lifetime Warranty.