The RIDGID SF-2500 SuperFreeze is a compact, carryable pipe-freezing system that lets you form ice plugs in live systems—copper tubing from ½″ to 2½″ (12–65 mm) and steel pipe from ½″ to 2″ (12–50 mm). Using self-contained R-507 refrigerant and a rotary compressor, it freezes pipes in as little as 5 minutes. The unit includes flexible hoses and aluminum freeze heads for easy handling and simultaneous dual plug capability.