Setup, Compatibility, and Care
To install the A963427NU, you must first isolate the water supply to the shower to prevent accidental leaks. Remove the decorative cap on the handle, unscrew the retaining screw, and pull the handle assembly forward to expose the carrier. Replace the old carrier and extension with the new components, ensuring they are aligned with the splines of the cartridge before tightening. Because this is an international part, verify that your valve model series is compatible with the A963427NU part number before beginning. For long-term care, apply a small amount of plumber's silicone grease to the moving parts to reduce friction and minimize mineral build-up.