Thank you for your question. The Delta Zalia Pull-Down Kitchen 19781-SPSD-DST faucet does not required a wrench like RP90248, for removing the aerator. Technically, the aerator will unscrew counter clockwise, by hand. However, since the aerator is metal and the threads are plastic, please do not remove the aerator unless you have to. To dissolve any sediment that may collect in the aerator or spray face, just soak the face of the wand in a 50/50 or stronger solution of white vinegar and tap water for 10 to 15 minutes.
Date published: 2019-01-10