Fits most Shop-Vac wet/dry vacuums 5 gallons and up. Includes retaining ring. Easy to install and clean. Effective on wet or dry jobs. Overall dimensions: 8.13W x 7.75D x 7.75H inches. About Shop-VacShop Vac has been creating the gold standard in industrial and shop vacuums for over 40 years, and prides itself on unrivaled quality and continued innovation. Creating dependable and improbably tough vacuums for commercial, industrial, and residential use alike, there simply is no substitute for a real Shop Vac. No matter the size or nature of the mess you've made, there is a Shop Vac product designed to clean it up completely and efficiently. When you shop for a wet/dry vacuum, accept no substitutes; get an original Shop-Vac.