NuTherm PF-50 Heat Transfer Fluid - 5 Gallon Disclaimer: Spigots/Faucets are only compatible with 5 Gallon Jugs and must be purchased separately (Compare to Dynalene HC-50) NuTherm PF-50 is a high-performance heat transfer fluid designed as an alternative to less effect fluid such as glycol, PAG, and Calcium Chloride open bath fluids. Nutherm PF-50 is NON-Toxic, NON-flammable, and has a robust corrosion inhibition package making it ideal for use in open bath systems down to. Shipping Information: Signature REQUIRED Upon Delivery of this item. Any fees associated with return shipments to our warehouse due to failure to sign for or pick-up order(s) are customer responsibility.