Keep the mess contained with the RIDGID (size C) wet dry vacuum dust collection bag. With this 2-pack, you can always be prepared for large project cleanups so that easy disposal is right at your fingertips. The shop vac filter bag fits 3 - 4.5 gallon RIDGID wet dry shop vacs as well as the 6 gallon NXT RIDGID wet dry vacuum and helps clean up small, dry debris such as drywall dust. The addition of the dust bag allows for a no-mess drum while cleaning. Simply remove the bag from the vacuum cleaner and toss for a quick cleanup - no drum lifting needed. These high-efficiency filter bags can help vacuum performance and provide a cleaner operation because it minimizes debris clogs in the filter to increase the filter life. When you pair dust collection bags with a RIDGID wet dry vac filter, you can help optimize your shop vac performance for an efficient project cleanup experience. Installation and removal is simple - align collar of dust bag with inlet, press collar against the shop vacuum drum and remove by popping the collar out from the inlet.