Nasco Flux, Is A Water Soluble, Self Cleaning Flux That Activates On Heating. The Flux Is Specially Designed For Copper Joining And Has Excellent Wetting Properties.
Its great, our dogs love it. I suggest you highlight that the filter needs to be changes around every two weeks and you offer addition filters to be purchased. After reading the instructions I realized I needed to buy additional filters which I bought from Takealot.