... -layer prevention design 2011 Soap Dispenser Pump Product Components Material: *Actuator, Stem, Chaplet, Closure-- PP*Piston, Gasket, Piston, Sub-stem, Dip tube- PE ... collar inland standard)*30/410B(thin rib collar)*33/410D(double ribbed collar)*33/410E(double ribbed collar) 2011 Soap Dispenser Pump