Moen Utility sink parts in the service bay...
My Moen service bay faucet model 126 (same cartridges as model 8126, says Moen service rep) is leaky. I was hoping it had a lifetime warranty, as does all Delta products found in our Foretravels. Not so, says Moen. Moen 'commercial' product line carries a 5 year warranty.
The wall-mount utility sink cartridge numbers are:
hot #121550 and cold #121551. They are about $10-12 each.
If you replace the cartridges, you are advised to replace the two thin O-rings where the spigot screws to the faucet body. The part numbers for these two O-rings, oddly, is NOT included in their parts diagram.