HAVE PURCHASED VAC MOTOR GASKETS FOR HD LAMB MOTORS 5.7WOODBRIGE COMMERCIAL SUPPLIED A GASKET 12.5 CMS DIA THICKNESS 2 CMSCARPET CLEANERS STORE SUPPLIED A GASKET 14 CMS DIA THICKNESS 0,5 CMSANYBODY KNOW WHICH IS THE CORRECT GASKET.MANY THANKS PAUL CONDON AZTEC SERVICES