Shop-Vac 90585 Foam Sleeve Filter Replacements for Most Shop-Vac Wet/Dry Vacuum Cleaners 5 Gallon and Above, Replace Parts # 9058500, 5 Pack - Amazon.com
LifeSupplyUSA Foam Sleeve Wet Dry Filter Compatible with ShopVac 90585 9058500 9058562 Type R and Most VacMaster Genie Shop Vacuum Cleaners - Amazon.com
ALL PARTS ETC. Foam Sleeve for Shop Vac 90585, Washable Foam Filter Replacements for Shop Vac - Also Compatible with Ridgid, Craftsman, Vac Master and Other Similar Wet Dry Vacs - Amazon.com