This 21-pack of replacement vacuum bags is designed to fit Bissell models and replaces part number 840. Generic replacement part. Made with multi-layer filtration, these bags help trap dust, allergens, and debris for better air quality and vacuum performance. ✅ Key Features: • Quantity: 21 replacement vacuum bags • Compatible Brand: Bissell • Part Number: 840 • Micro-filtration: Captures fine particles and debris • Durable material for high airflow and suction 📦 Includes: 21x high-filtration vacuum bags compatible with listed models