{TAIL ~ A gasket} 409 disposed between the tank and cap assemblies is thus compressed, sealing {HEAD ~ the contact} between the two assemblies so that air cannot escape 
{ TAIL ~ A gasket } 409 disposed between the tank and cap assemblies is thus compressed , sealing { HEAD ~ the contact } between the two assemblies so that air can not escape
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH