Seats and Springs Kit.

Hi Gary, Thank you for your question about the Delta Faucet model 3538-MPU-DST. The RP60400 valve assembly does not use seats and springs. It closes inside the valve assembly with a diamond coated ceramic surface. Please reach out with any additional questions! Best Regards, Bryan Digital Communications Specialist

Hi Mario, thank you for your interest in the RP77737! The replacement kit is RP74418. Please view the link below. https://www.deltafaucet.com/parts/product/RP74418.html Please contact us directly if you have any questions or need additional assistance. Best Regards, Themar Digital Communications Specialist

Hello Mike! Thank you for your question and we are happy to help. You will want to use the RP4993 seats and springs for your shower. With any further questions or concerns, please do not hesitate to reach out to us again. Thank you for being a loyal Delta Faucet customer. Best Regards, Carrie

Hello Customer! Thank you for your question and we are happy to help. We recommend changing the stem units as well as the seats and springs. With any further questions or concerns, please do not hesitate to reach out to us again. Best Regards, Carrie

Hi Greg, Thanks for your question regarding RP77737! The parts diagram should be included with your faucet model, as these are repair parts. This repair part has two types of springs determined by which model you have. Please feel free to contact us with any questions or for further assistance. Best Regards, Emma Digital Communications Specialist

Hello, Thank you for your question! No, you will need to use the RP4993 seats and springs. https://www.deltafaucet.com/parts/product/RP4993.html Please reach out with further questions! Best Regards, Tim Digital Communications Specialist

Hi Kcflaa, Thank you for contacting Delta Faucet. Please accept our sincere apology for the inconvenience you are experiencing. We will be happy to assist you in resolving this issue as quickly as possible. Here are the instructions on how to replace our Delta Faucet DELTA® Seats & Springs Kit MODEL#: RP77737. Here are the instructions for installing a new set of seats and springs in your faucet: First, shut off the water supply to the faucet. Next, remove the faucet handles or handle. A Phillips head screw or Allen wrench is needed. For lever handles, you should find either an exposed Phillips head screw on the top of the handle or, on newer faucets, a set screw on the side of the handle below the lever. Remove the screw with a 3/32" Allen wrench. Unscrew the bonnet nut. You will then be able to pull the stem unit assembly out of the valve body. The seat and spring will also lift out of the valve body. You may also need to flush out the valve body. Place a pitcher or bucket upside down over the open valve and turn the water back on full strength for 5 to 10 seconds. Do this on both the hot and cold sides. After the allotted time, turn the water off. The wide part of the new spring goes down into the hole first. The larger opened side of the new seat then fits down over the narrow part. The spring and also goes down into the hole. Reinstall the stem units, bonnet nuts, and handles in reverse order. Thank you for being a loyal Delta Faucet customer. Please feel free to call, email, or message us on social if you need anything else. Best Regards, Themar