PC100 (11 1/4", 28.5 cm) This is not a flat seal, (a V type seal) will suit Princeton, Superchef, Speedcooker, S/Steel 2000, 4.5ltr & 6ltr models.
PC200 (9", 23 cm x 12mm wide) to suit Magician, models 7, 9 & 175, 4ltr / 7 pint
PC300 (9 1/4", 23.5 cm x 11mm wide) to suit Mealmaster, Cookmaster, Galley Slave, Vitacook, CM574, CM177 & CM379, 4ltr / 7 pint
PC400 (10 3/4", 27cm x 9mm wide) to suit Kitchencrafter, Electric models 16, 177, 674 & 973, 6ltr / 11 pint.
PC500 (11 3/4", 29.5 cm x 10mm wide) to suit 6ltr Cooker Canner, 10ltr / 16 pint Sterilizer, Country Canner & Models 11 & 15
PC600 (8 3/4 ", 22 cm x 10mm wide) to suit Wizard, Preslite, & model 10 & 10A, 3ltr
PC700 (7 5/8", 20 cm x 10mm wide) to suit Mercury & model 5, 3ltr.
Measurements are from outer edge to outer edge, across the seal.
These are VERY approx sizes only