The new RIDGID Pump Accessory makes your existing wet dry vac even more versatile. It's a great addition to any RIDGID wet dry vac with a drain. Easily increase job efficiency as you can now pump ten gallons per minute of water from the vac drum and up to forty feet high. The RIDGID Pump Accessory is simple to use. Remove the drain cap from the vac and thread the pump accessory to the drain opening.