CK Worldwide uses a unique head assembly that provides the largest water jacket available in an 20 series torch. With this type of construction, CK provides over 4 x the surface area for maximum heat transfer versus competitive torch heads! INCREASED COOLING CAPACITY!!Over 4 x the surface area for maximum heat transferCooler running torchesLonger consumable lifeWill hook up to standard cables and hosesFail-Safe hose fittings (no wire ties required)