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Hello Carrabelle, Thank you for your inquiry! The Delta Foundations Kitchen 21987LF-SS model does not come with a side sprayer or connections for one. Best regards, Tanya

Thank you for your question, AAWISAT! The Delta Foundations Kitchen 21987LF-SS faucet works with a maximum deck thickness of 1 5/16". Unfortunately, we do not have an extension kit for this faucet. A widespread DST faucet such as the model 2480-AR-DST or 2256-SS-DST will have a maximum deck thickness of 2 1/2". Best regards, Tanya

This will work with 2 holes or 3 holes. Center area is flushed so don't mater.

Thank you for your question, bhorn! This model has two concealed Phillips head screws located underneath the button covers of the handles. With the water shut off supplies completely turned off, you will then remove the handles, unscrew the bonnet nuts and pull the stem unit assemblies straight out. With and Allen wrench or small tool, remove the seats and springs, taking note of the way the larger end of the spring sits inside the valve body. Replace these with the new parts and screw the bonnet nuts back on before turning on the water supplies to test that the leak has been resolved. Please contact us directly if you have questions or need assistance. https://media.deltafaucet.com/PartsDiagram/DPD-K-21987LF_A.pdf Best regards, Edward

Hi Stargirl83, Thank you for your questions! Brilliance® finishes, designed to not corrode, tarnish or discolor for a “like-new” look for life, are developed by embedding molecules deep into the faucet’s surface, creating a bond that is virtually indestructible. This process is known as Physical Vapor Deposition (PVD). Delta was the first manufacturer to offer this patented process that creates a bond that's virtually indestructible with an incredibly reflective shine. Brilliance resists abrasions and discoloration better than traditional special finishes and, in many cases, better than chrome. In independent tests using the harshest drain cleaners, the Delta Brilliance drain retained its appearance, while its competitors did not come close. Tested with over 100 household cleaners, the abrasion resistance of the Brilliance finish can even withstand repeated scouring with steel wool. A Brilliance finish is guaranteed not to corrode, tarnish or discolor for as long as you own your home. It can even withstand prolonged exposure to harsh coastal environments. Also, we do manufacture an adapter RP51505 that converts 21.5X 1-6 g metric thread to 55/64”-27 standard thread or vice versa. The aerator RP74130 that comes with your faucet has a thread size of 55/64-27". Best regards, Brandis

Hi, Moniloco! Thank you for your question. A portable dishwasher can be installed on the Delta 21987LF-SS Faucet. The thread size for the RP74130SS aerator for the faucet is 55/64-27. We recommend checking with the portable dishwasher manufacturer for a compatible adapter assembly. Best Regards, Rosanna

Thank you for your question, John! The thread size for the RP74130SS aerator is 55/64-27. We only manufacture one adapter, part number RP51505 that converts 21.5X 1-6 g metric thread to 55/64”-27 standard thread or vice versa. https://www.deltafaucet.com/parts-product-detail?modelNumber=RP51505 Best regards, Edward

Thank you for your question. We do not make an adapter for the faucet to attach a water filter. We recommned contacting the PUR filter company to see what they recommend.