Product Description: 
This part controls the back pressure in your machine and over pressure. Older models have a double check valve inline. 
Notice: This part has been recently updated for the newer Livia 90s 
- modified for older Livia 90's units compatible with the older Livia 90s.
 We carry it for the older Livia 90s & the newer ones
Fits:  
Pasquini Livia 90

