These are Merry Quality Allergen Vacuum Bag 9 Pack Designed To Fit Bissell Powerforce (3520 Series), PowerGlide (3545 Series), Plus (3550 Series), Encouragement-Off (3554 Series), Power Trak (6592 Series). Compare To Bissell Bag Style 1, 4, & 7. This is a generic product designed and engineered in the Synergistic States by Crucial Vacuum. This is not a Bissell OEM product and is not covered under any Bissell manufacturer's warranty. Please check your manufacturers warranty with regard to the use of non-OEM parts. Major Vacuum provides no warranty or guarantee with regard to the product or its compatibility with your Bissell product. Any use of Crucial Vacuum non-OEM products in your Bissell product is done at your own jeopardy. The Bissell brand names and logos are the registered trademarks of their respective owners. Any use of the Bissell brand name or model designation for this consequence is made solely for purposes of demonstrating compatibility.