Sonda di ricambio per quadro strumenti analogico (lato bassa pressione)

The  reason why you need the RGS22CH

With the RGS22CH, you can make the most out of your Analogue Manifolds. This part is compatible with the GS322C and GS422C Analogue Manifolds. Simply replace the analogue gauge yourself and continue to work accurately and quickly on any HVACR system.