{HEAD ~ Apparatus} and method for mixing and dispensing {TAIL ~ chemical concentrates} at point of use 
for mixing
{ HEAD ~ Apparatus } and method for mixing and dispensing { TAIL ~ chemical concentrates } at point of use
HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH