19 1/4-21 1/8 S/S Drum Clamp - Quick Release

19 1/4-21 1/8 inch diameter SS Drum Clamp Quick Release - used to connect bottom of B style dust collector flanges to 55 gal waste drums. Sure lock clamping mechanism. 19 1/4-21 1/8 inch diameter SS Drum Clamp Quick Release - used to connect bottom of B style dust collector flanges to 55 gal waste drums. Sure lock clamping mechanism. Quick-Release Worm-Drive Duct & Hose Clamp 19-1/4 to 21-1/8" Clamp Range, 5/8" Band Width"