Cup Seal And Diverter Gate Replacement For 3800 Tub Spout OEM Plumbing Part Easy Install Durable Repair For Leaky Shower And Tub Faucet Compatible With 3800 Series Tub Spouts Long Lasting Performance

Cup Seal and Diverter Gate for 3800 Tub Spout (Single Part)
✔️ Authentic Moen replacement part for diverter tub spouts, unfinished

This cup seal and diverter gate is a replacement part for Moen 3800 tub spouts. It seals water and directs flow within the diverter assembly, helping restore proper performance in bathroom setups.

✅ Moen part number 101237 for diverter tub spouts
✅ Cup seal and diverter gate, no finish
✅ Authentic Moen replacement part with OEM quality
✅ Backed by Moen’s Limited Warranty

💡 What is a cup seal and diverter gate used for in a tub spout diverter replacement?

- It seals water and redirects flow in the tub spout diverter
- It lets you repair without replacing the entire tub spout
- It’s a common, ready-to-install replacement part for Moen 3800 spout assemblies