Try your local RV supply store, the service department at the dealership or Camping World. The service department would be my first choice but then they would be replacing it for me too. Also some members will use a faucet from Lowes or Home Depot.
Great choice for "Living within my means" and camping for one...
2011 Salem Cruise Lite 20RBXL & 2011 Toyota Tundra Dbl Cab
Camping History: 45 Trips / 133 Nights / 3736 Miles
FRF Social Group: Campers of the West