Keep your Shop Vac running like new with these replacement filter cartridges! This value pack gives you 2 of the 903-04 filter replacements plus 2 of the 90585 foam sleeves AND even includes a small cleaning brush - everything you need for proper vacuum maintenance. These filters are compatible with Shop-Vac models 90304, 90350, and 90333, fitting most 5-gallon and larger wet/dry vacuum cleaners. The pleated paper design isn't just random - it's actually engineered to enhance airflow and suction while capturing dust and particles effectively before air gets released back into your room. This means better air purification and less clogging so your vacuum works at its best for longer. Installation is seriously easy - no tools needed, you can just pop these in and get back to cleaning. It's recommended to replace your filters every 3-6 months depending on how much you use your vacuum, and having this 2-pack on hand means you're always prepared. Whether you're dealing with construction dust, workshop debris, or general household cleaning, these quality filters will keep your vacuum performing at peak efficiency. No more weak suction or dust blowing back into your air - just reliable cleaning power that makes quick work of any mess!