RIDGID 2-1/2 in. locking utility nozzle is an all-purpose shop vac accessory designed to tackle a wide variety of dirt, debris, sludge and mess. The new rocking design lifts and pivots with your natural movements to capture more dirt and debris. With the new locking design, your RIDGID shop vac accessory locks onto the hose or wand so it wont fall off during use. Easily detach by releasing the locking tab or twisting off. The 2-1/2 in. opening is the research backed optimal size for tackling large messes with a RIDGID wet dry vac. Max your shop vac and get the most out of your cleaning tools, with RIDGID 2-1/2 in. locking accessories.