Cartridge - DIAMOND™ Valve - 1H

Thank you for your question, SheShe! The prices found on the Delta website are list price only. We allow our dealers and retailers to set the price accordingly. Any genuine Delta product or part with the same number will be exactly the same, regardless of the place of purchase and held to our exacting standards. Best regards, Edward

Hi Tam, Thank you for your question. The RP51481SS sleeve assembly is the part that has the 4 black tabs. http://www.deltafaucet.com/repairparts/details/rp51481ss.html?showPhotoGallery=false The tabs are an internal component to the sleeve. Thanks, Dave

Hello, Please accept our sincere apology for the inconvenience you are experiencing. We have reached out to you via email to further assist at this time. Best Regards, Tim Digital Communications Specialist

Hi, Dave! Thank you for your question. The water supply to your faucet will need to be shut off before replacing the Delta RP50587 Valve Cartridge Assembly. Best Regards, Rosanna

Hi, MoMo! Thank you for your question. Here is a link to the Delta RP50587 Valve Cartridge Assembly Maintenance and Instruction manual: https://media.deltafaucet.com/MandI/64211%20Rev%20A.pdf Please feel free to call, email, or message us on social. Best regards, Rosanna Phone: 1-800-345-3358 | Email: customerservice@deltafaucet.com | Facebook/Twitter: @deltafaucet

Hello! Yes, this is the correct cartridge for model 9178-DST. Please reach out with further questions! Best Regards, Tim Digital Communications Specialist

Thank you for your question, James! In order to change the Valve Cartridge RP50587 part, it is advisable that you turn the water off to the unit or residence before proceeding. You will need a 1/8" or 3/32" allen wrench to remove the handle assembly set screw. You may also need an adjustable wrench to loosen the bonnet nut around the valve cartridge assembly. Once the bonnet nut is removed, the cartridge will pull straight out. Clean the valve body of any debris, then insert the new cartridge, screw on the bonnet nut and please be sure not to over-tighten the bonnet as we recommend tightening a 1/4 turn to a full turn past finger tight. Lastly attach the handle with the set screw and this repair is complete. Turn on the shut off valves below the counter slowly and test to make sure the water flows correctly. Please feel free to contact us directly if you have questions or need further assistance. https://media.deltafaucet.com/MandI/64211%20Rev%20A.pdf Best regards, Tanya

Hi Ron, Thank you for your question. The original model 470 did use a metal ball valve. The Rp50587 DST cartridge has replaced this ball valve for use in the new DST models, including the updated 470-DST. Best regards, Edward

Thank you for your question, Kevin! All parts (other than electronic parts and batteries) and finishes of a Delta faucet are warranted to the original consumer purchaser to be free from defects in material and workmanship for as long as the original consumer purchaser owns the home in which the faucet was first installed. You can obtain warranty repair parts by contacting us directly at 1-800-345-3358 Monday-Friday: 8 a.m.-8 p.m. EST and on Saturday: 9 a.m.-6 p.m. EST. You may also email us at customerservice@deltafaucet.com or submit a warranty claim using the Contact Us form on the website. Below is a link that should help. https://www.deltafaucet.com/service-parts/contact-us Best regards, Edward

Hello, Thank you for your question! Yes, please see the following link for a How-To video on installing this video. https://www.youtube.com/watch?v=DxVOPo9TPTI Please reach out with further questions! Best Regards, Tim Digital Communications Specialist

Hello, Thank you for your question. There is an order that was placed on 6/25/2020 for the RP50587. Your email will receive a conformation of that. Please contact us back if you have any questions or if you need further assistance you may call us at 1-800-345-3358. We are open Monday through Friday 7:00 AM to 7:00 PM central time, and 8:00 AM to 5:00 PM on Saturday. Thank you for your cooperation. Best Regards, Bethany

Hello Kent, Thank you for your question! The orange tab on the RP50587 valve assembly is the handle limit stop. The stop limits the handle motion to the hot water side. It only has two positions, it is not designed to be in between (middle) of the two positions. The cartridge comes in the full range setting from the factory. This information can be found on the installation guide that comes with the faucet that includes this cartridge. https://media.deltafaucet.com/MandI/64211%20Rev%20A.pdf Best regards, Tanya

Thank you for your question, Kathy! In order to change this part, it is advisable that you turn the water off to the unit or residence before proceeding. You will need a 1/8" or 3/32" allen wrench to remove the handle assembly set screw. You may also need an adjustable wrench to loosen the bonnet nut around the valve cartridge assembly. Once the bonnet nut is removed, the cartridge will pull straight out. Clean the valve body of any debris, then insert the new cartridge, screw on the bonnet nut and please be sure not to over-tighten the bonnet as we recommend tightening a 1/4 turn to a full turn past finger tight. Lastly attach the handle with the set screw and this repair is complete. Turn on the shut off valves below the counter slowly and test to make sure the water flows correctly. Please feel free to contact us directly if you have questions or need further assistance. Best regards, Edward

Thank you for your question, Winston! Both models 980T-SS-DST as well as 980T-SSSD-DST will both use the RP50587 valve assembly cartridge. https://media.deltafaucet.com/PartsDiagram/DPD-K-980T-DST.pdf Best regards, Edward

Hi, Gene1 Thank you for your question. The Delta RP50587 does not replace the RP70 Ball Assembly. If you have the 470-DST Faucet, you will need the RP50587 Valve Cartridge assembly. If you have the non-DST 470 Faucet, you will need the RP70 Ball Assembly. Best Regards, Rosanna

Thank you for your question, Bill! Yes, RP50587 is the correct cartridge assembly for the model 16953-DST. Best regards, Jon

Thank you for your inquiry, Bill! There is an orange seal on the bottom of the Delta Valve Cartridge RP50587 only. Please feel free to call, email, or message us on social if there is anything else you need. Best regards, Tanya Phone: 1-800-345-3358 | Email: customerservice@deltafaucet.com | Facebook/Twitter: @deltafaucet

Hi, Thank you for your question. We are happy to assist. Depending on when your faucet was installed, there may be a tag on the water lines. The other would be to send in a photo of your faucet for us to identify. Please contact us back if you have any questions or if you need further assistance you may call us at 1-800-345-3358. We are open Monday through Friday 7:00 AM to 7:00 PM central time, and 8:00 AM to 5:00 PM on Saturday. Thank you for your cooperation. Best Regards, Bethany

Thank you for your question, Bobkat! The orange/red switch on the top of the Delta Valve Cartridge RP50587 is a handle limit stop which is an optional safety feature that can be used to prevent the handle from moving too far to the hot side. When it is switched all the way to the left, the handle can turn to the hottest position. When it is kept to the right, this will limit the handle to turn only halfway to the hot side. Best regards, Tanya

Hi, Dave! Thank you for your question. The lever on the Delta RP50587 Valve Cartridge Assembly is the temperature limit stop. When the lever is switched all the way to the left, the handle can turn to the hottest position. When the lever is kept to the right, this will limit the handle to turn only halfway to the hot side. Best Regards, Rosanna

Hello, Please accept our sincere apology for the inconvenience you are experiencing. Here is what we can do to resolve your issue for you. Please contact us directly by phone at 1-800-345-3358 or email at customerservice@deltafaucet.com as we would like to resolve this matter for you at this time. Best Regards, Tim Digital Communications Specialist

Thank you for your question, Steve! Our products have a Lifetime Limited Warranty that covers parts and finish to be free of defect in material and workmanship for the original owner/purchaser. Best regards, Jon

Hello! No, there is no difference in these cartridges. Please reach out with further questions! Best Regards, Tim Digital Communications Specialist

Hello, Thank you for your question! No, simply tightening the bonnet nut with a standard wrench will be sufficient. Please reach out with further questions! Best Regards, Tim Digital Communications Specialist

Thank you for your question. I apologize that you are having trouble adjusting your temperature. We recommend turning the volume on at full power and then getting the temperature you would like. Once that is done, leave the faucet on and it will always go to that temperature.

Hello, Please accept our sincere apology for the inconvenience you are experiencing. We have reached out to you via email to further assist at this time. Best Regards, Tim Digital Communications Specialist

Hello, Thank you for your question! Yes, this is the correct cartridge for that model. Please reach out with further questions! Best Regards, Tim Digital Communications Specialist

Hi, Dave! Thank you for your question. The Delta RP50587WW Valve Cartridge Assembly is exclusive to WW Grainger. However, the RP50587 and the RP50587WW have no differences and are the exact same make and quality. Best Regards, Rosanna

Thank you for your question, Steve! The issue you are describing is typically caused by debris entering the lines and blocking water at the base of the cartridge. Usually turning off the water supplies, removing the handle, bonnet nut and valve assembly cartridge and then simply rinsing off any debris will help resolve this issue. You can further flush the faucet but putting a bucket over the entire unit, turning the supplies back on for about a minute and directing the water into the sink. If the faucet is still showing signs of low flow after the cartridge, bonnet and handle can be returned, the Pex supply lines can be placed in a bucket one at a time, turning the opposite supply line back on to flush through the faucet and back out into the bucket. Please contact us directly if you have questions or need further assistance. Best regards, Edward Phone: 1-800-345-3358 | Email: customerservice@deltafaucet.com| Facebook/Twitter: @deltafaucet

Hi, TSLove! Thank you for your question, and I am sorry to hear that you are experiencing low flow. Over time, common water debris will settle in the house supply lines. Anytime the water is shut off to a portion of the home, this debris can become dislodged and will move through the pipes to be caught by a faucet. Local construction or the changing of the seasons can also cause this. Flushing the supply lines through the unit should remedy this situation. To flush the unit, we recommend the following: Start with the easy stuff: Remove your aerator, wand or hose to check the flow through the unit without that part installed. If the flow is good, the piece you’ve removed is where the issue is. Soaking the part in a 50/50 mixture of white vinegar and water could help remove any particles or debris blocking the flow. If the water does not have a good flow, the problem could be in the faucet. Next, check the supply lines for debris: Turn the supply off to both the hot and cold-water lines. Once off, turn the handle on the faucet to the on position and leave it there to bleed the lines of any excess water. Next, disconnect the hot water supply line and place it inside of a bucket. Once the line is securely positioned into the bucket, turn on the cold-water supply. Since the handle was left in the on position, the water will flow up the cold supply line, through the faucet cartridge and back down the hot water line into the bucket. Leave this flowing for at least 30 seconds. After flushing, reconnect the hot water line and repeat this process with the cold-water line to ensure all particles have been removed from both supplies. If you need further help with this process, please contact us directly and we can walk you through the procedure. We are available at 800-345-3358 (prompt 2, then 3), Monday through Friday, 8am to 8pm and Saturday, 9am to 6pm CST. Best Regards, Rosanna