Thank you for your question, misshawnee! We only recommend using the drain included with this faucet, with a sink that has an overflow hole. Best Regards, Benjamin

Hi, TomC! Thank you for your question. I am sorry to hear that you are experiencing low flow from your Delta faucet. The 554LF-RB does have a 1.20 gpm flow rate at 60 psi. If you are getting less than this, we recommend to flush the valve to make sure no debris is stuck inside causing the low flow. To flush, turn the water off at the shut off valve. Remove the handle by unscrewing the set screw counterclockwise with a 3/32" allen wrench. Unscrew the cap and bonnet. Remove the valve cartridge and flow restrictor. Have a bowl or bucket to divert the water from spraying everywhere. Turn on the water at the shut off valve. Water will flow through the valve, out of the open handle. Flush for 30-45 seconds. Turn off the water at the shut off valve. Reinstall all parts. Test the water flow. If still low flow, please contact our Delta Customer Service line at (800)345-3358. We are available Monday-Friday, 7am-7pm, CST and Saturday, 8am-5pm, CST. You may also email at customerservice@deltafaucet.com. Best Regards, Rosanna

Thank you for your question. Delta Faucet model # 554LF-RB has a 1.5 gpm at 60 psi. It does not have the option for a lower flow or an option to add a flow restrictor.

Thank you for your question, Norma! This faucet has a brass valve body with a ceramic cartridge. Best regards, Jon

Hi, TrueAmericanVeteran! Thank you for your question. Although our finishes are extremely durable, they may be damaged by harsh abrasives or polish. To clean, we recommend simply wiping with a gentle damp cloth and then blotting dry with a soft towel. If water deposits are especially troublesome, you may use a 50/50 mixture of white vinegar and water to remove them. White vinegar is strong enough to dissolve mineral deposits, yet mild enough not to damage our finishes. Note: Please be aware white vinegar may stain some porous materials like untreated stone. If you have an unsealed tile or counter top, please take care when cleaning your products. If you’d prefer using a chemical cleaning product, our finishes may be cleaned with the following household cleaners: Formula 409® Antibacterial All-Purpose Cleaner, Fantastic® All-Purpose Cleaner, or Windex® Original Glass Cleaner, when used according to the manufacturer’ instructions. Any cleaners not listed above may be tried if they do not contain hydrofluoric, hydrochloric and/or phosphoric acids or similar caustic agents. Some examples of chemical cleaners to avoid are: green Scotch-Brite Heavy Duty Scrub Sponges, Scrubbing Bubbles Bathroom Cleaner and Lysol Basin Tub, and Soft Scrub and Tile Cleaner. Note: Any products that state on the label that they remove tarnish and rust will most likely harm the finished products. Most drain cleaners may be used when following their specific directions and not allowing exposure to the finish longer than 30 minutes. Learn More Here: https://www.deltafaucet.com/service-parts/frequently-asked-questions/cleaning-and-care Best Regards, Rosanna

Thank you for your question, misshawnee! The RP26533 drain assembly included with this faucet, has a brass lift rod strap, and one brass nut. The other materials are metallic, but are not brass. Best Regards, Benjamin

Hi Mark, Thank you for your question. The model 554LF will work with the Kohler K-2075-1-0 sink. The faucet is installed in a single hole application. Thanks, Dave

Hello Anonymous, Thank you for your inquiry! Unfortunately, we do not currently manufacture any lavatory faucets in the Black Stainless Steel finish. Please feel free to call, email, or message us on social if there is anything further you need. Best regards, Tanya Phone: 1-800-345-3358 | Email: customerservice@deltafaucet.com | Facebook/Twitter: @deltafaucet