Two functions in the same Assembly
The filling knob and safety valve have different functions. Check which assembly you need and the markings on each component; do not infer the pressure setting from the cap colour.

Filling and safety assembly Baxi Nova Nox 24-24 F refurbished. Body brass with clear Control knob filling and Safety valve with red cap. Compare the coupling, threads and drive shape with the installed Tap.
The photographs show a Body of Connection with Control knob filling and a Safety valve mounted. Compare the layout of both controls and the Ports.
The connection layout, assembly and described features of this unit. Compare views from the same angle and complete identification of the removed Part.
Choose a photo of your part to view it beside this unit. Compare the labels, connectors and mounting points from the same angle.
Your photo stays on your device: it is not sent or stored.

Application listed in the catalogue: Baxi Nova Nox 24-24 F. The variant and configuration must match the installed equipment; this does not establish compatibility with other models.
No models are documented for that search.
The application is listed in the catalogue and must be checked against the installed variant. Compatibility has not been confirmed against an exploded parts diagram.
The filling knob and safety valve have different functions. Check which assembly you need and the markings on each component; do not infer the pressure setting from the cap colour.
We repair boilers in Madrid and the surrounding areas. Installation is arranged separately from the purchase of the part.
Body brass with Control knob clear filling and Safety valve with red cap. Compare these details with the Part removed and their full identification.
The connection layout, assembly and described features of this unit. Compare views from the same angle and complete identification of the removed Part.
This product page identifies the catalogued application Baxi Nova Nox 24-24 F. It does not establish equivalence with other versions; service documentation linking Part to the specific model is required to extend compatibility.