The at least one shut off flap may selectively allow {TAIL ~ the product} to be dispensed from {HEAD ~ the outlet orifice} 
The at least one shut off flap may selectively allow { TAIL ~ the product } to be dispensed from { HEAD ~ the outlet orifice }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD