Ridgid VT2530 Genuine OEM 1 1/4 or 2 1/2 Inch Carpet or Hard Flooring Nozzle Accessory for Ridgid Wet / Dry Vacuums DETACHABLE ADAPTER allows you to switch between 2 1/2 inch hoses or 1 1/4 inch hoses ADJUSTABLE FOR HARD FLOORING OR CARPET: An onboard lever activates brushes in the system that can handle carpeting, or retracts them for use on hardwoods or concrete SWIVELING ARM maximizes the range of motion available on this accessory, letting you get into generally inaccessible nooks and crannies CROSS BRAND COMPATIBLE: This system will work with other brands as long as their hoses match the diameter specifications outlined IMPROVED MOBILITY with two wheels on the side of the unit. This makes the unit move faster and helps reduce scraping against your floors