Welding Coolant 947 Ready To UseEnvironmentally Friendly Propylene Glycol - Mixing Not RequiredDefense 947-55 RTU provides year-round pump protection for water recirculators and closed loop cooling systems. Reduces the need for water fill maintenance by reducing water evaporation.Welding coolant 947 RTU formula protects from freezing to 10°F with no dilution necessary. Low electrical conductivity helps reduce "High Frequency" problems.Welding Coolant, Propylene Glycol, Dynaflux 947 in 55 gallon drums ships by common carrier only. Call 847-234-5736 for a freight quote.Dynaflux propylene glycol water cooler welding coolant 947-55 for Mig, Tig and Plasma systems