Uxinzelelo oluphezulu lwe-stopcock yeendlela ezintathu zenziwa ngumzimba we-stopcock (owenziwe yi-PC), i-valve engundoqo (eyenziwe yi-PE), i-Rotator (eyenziwe yi-PE), i-cap yokukhusela (eyenziwe ngu-ABS), i-Screw cap (isenze nge-PE), enye indlela yokudibanisa (eyenziwe yi-PC + ABS).