Channels in the press block extend to the extension openings in the gasket to allow flow of {HEAD ~ reagent} into and out of {TAIL ~ the active volume}, which is confined to the thickness of the gasket and can thus be minimized 
out of
Channels in the press block extend to the extension openings in the gasket to allow flow of { HEAD ~ reagent } into and out of { TAIL ~ the active volume } , which is confined to the thickness of the gasket and can thus be minimized
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH