How do you replace the aerator at the very end of the Wand of Moen Model 7590?

To replace the aerator on the Moen Model 7590 faucet, first, ensure the water supply is turned off. Use a wrench or pliers to gently unscrew the aerator from the end of the wand, turning it counterclockwise. Once removed, clean any debris, then install the new aerator by screwing it on clockwise until secure. Finally, turn the water supply back on and check for leaks.