I am constructing an IBC system at home in line with Murray's design. The problem I have is trying to source the "snap off" fittings in South Africa. Does anyone perhaps know of where in SA these are available, or who manufactures these parts internationally?
You might find Grainger to be a reliable international catalog and distributer. Here also is a link to Grainger's online catalog. I am not sure they call the snap fitting you need by the same name. Hope it helps.