Izindlela ezintathu ezihlukene zenziwe ngomzimba we-stopcock (owenziwe yi-PC), i-valve eyinhloko (eyenziwe yi-PE), i-Rotator (eyenziwe yi-PE), i-cap yokuzivikela (esenze i-ABS), i-Screw cap (esenze nge-PE), isixhumi sendlela eyodwa (enziwe yi-PC+ABS).