Introducing the replacement VF3501 shop vacuum bags for ridgid 3 - 4.5 gallons fine dust dry and wet shop vacs. These dust collector bags with high efficiency filters present a premium and reliable alternative intended for rigid shop vacs including:WD3050, VAC3000. // 4 Gal wet/dry vacs: WD40500, WD40700 & VAC4000, WD4080 & VAC4010, 50313. // 4.5 Gal ProPack vacs: WD45500 & WD45220, 50318. // 6 Gal NXT wet/dry vacs: HD0600, RT0600. *This is NOT a product of, nor is it sponsored or endorsed by RIDGID or WORKSHOP. This is a generic product designed and engineered by PureSturdy. Any use of the names or model designations compatibility. For this products are made solely for purposes of demonstrating compatibility.