The container further comprises an indicator system or means for use with {TAIL ~ a hydrogen generator} and {HEAD ~ a catalyst system} 
The container further comprises an indicator system or means for use with { TAIL ~ a hydrogen generator } and { HEAD ~ a catalyst system }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD