Proteams are known for their durability and dependability. With that said there's no reason to purchase a new unit if you could just upgrade your current unit to the newer specs and this upgrade kit has all that. New Proteam Sierra Upgrade Kit. This Kit includes the New Proteam Problade Tool Kit. Tools included in this kit are the carpet and hard surface floor tools, telescoping wand, crevice, duster, and upholstery tool. This kit makes cleaning carpet and hard floor surfaces a breeze.  20 Genuine Sierra Bags (These bags are Disposable and designed to keep dust and allergens inside of your vacuum.). 1 Micron Cloth Filter (The cloth filter is reusable and washable, the Micron also helps collect airborne particles and helps improve air quality as well.). 1 Round HEPA filter (HEPA filtration is 99.98% effective at keeping dust and allergens out of the air. This filters down to .3 microns and is washable.).