Aqua-Hot Small Filler Neck TNX-NEC-FLL
Compact Filler Neck for Aqua Hot RV Hydronic Heating Systems - TNX-NEC-FLL Item # TNX-NEC-FLL
Your RV's hydronic heating system, whether it's an Aqua Hot, Hydro Hot, or Webasto DBW 2010, features a white label displaying the model number. This label can be located on either the top or side of your heating system unit.
(How to Find the Model Number)
Hydro Hot Models: