HEPA Bags 3 Pack fit S20EZM Allergy Upright and retired Symmetry models. Genuine HEPA media vacuum bags capture dust and allergen particles. These bags fit Simplicity Sentry, 6000 series, 5000 series, the “old school” Symmetry models with SYM in the model name, S20E and S20SC. The SAH-3 bags do not fit any other S20 series models. For these models, see part SMH-6 instead.