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