Thank you for your question. The aerator for the Delta Haywood Lavatory 25999LF-SS model would be part number RP52216. Please see the below parts diagram link for this faucet. Please feel free to call, email, or message us on social if there is anything else you need.
Phone: 1-800-345-3358 | Email: email@example.com | Facebook/Twitter: @deltafaucet
Date published: 2019-11-11