These Type SD allergen vacuum bags fit Eureka and Sanitaire commercial-grade upright vacuums that use the SD bag style, including Sanitaire models such as the SC9180 and SC9150. The allergen-rated multi-ply media captures fine dust, pollen, and dander, making it well suited for offices, schools, and homes where filtration matters. Sold as a value 5-pack. (SKU: 63262) Bag type: Eureka / Sanitaire Type SD allergen Quantity: 5 bags per pack Filtration: Allergen-grade fine-particle capture Each bag uses a sturdy collar that seats firmly in the bag chamber for a clean, secure seal. Regularly replacing the bag maintains airflow and suction while protecting the motor from abrasive grit. The 5-pack keeps high-traffic cleaning routines well stocked.