{TAIL ~ The discharge end} of the teat cup may be fitted with a shut off valve which can be actuated to prevent ingress of treatment and cleansing fluids into the milk tubes during {HEAD ~ the treatment} and cleansing cycle 
{ TAIL ~ The discharge end } of the teat cup may be fitted with a shut off valve which can be actuated to prevent ingress of treatment and cleansing fluids into the milk tubes during { HEAD ~ the treatment } and cleansing cycle
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH