The housing does not determine calibration
The colour of the label and the external resemblance are not enough to choose the Replacement part. Confirms the marking and version; it is not proposed to modify its setting.

Reconditioned air pressure switch Roca RS 20/20. Black body with rounded corners, flat terminals, red areas and two adjacent ports on one edge. Compare the stated pressure setting, pressure ports and electrical contacts with those of the installed pressure switch.
Compare the full code, Ports and terminals. Two Pressure switches can share housing and have a different calibration.
The terminals and the two next Ports. Compare the views from the same angle and the complete identification of the withdrawn Part.
Choose a photo of your part to view it beside this unit. Compare the labels, connectors and mounting points from the same angle.
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Application listed in the catalogue: Roca RS 20/20. 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 colour of the label and the external resemblance are not enough to choose the Replacement part. Confirms the marking and version; it is not proposed to modify its setting.
We repair boilers in Madrid and the surrounding areas. Installation is arranged separately from the purchase of the part.
Body black rounded corners with flat terminals, red zones and two Ports Gaskets on one edge. Compare these details with the withdrawn Part and its complete identification.
The terminals and the two next Ports. Compare the views from the same angle and the complete identification of the withdrawn Part.
This product page identifies the catalogued application Roca RS 20/20. It does not establish equivalence with other versions; service documentation linking Part to the specific model is required to extend compatibility.