La Pavoni Romantica M12 Pressure Gauge Adapter code 31111941

La Pavoni Romantica M12 Pressure Gauge Adapter code 31111941 has the bottom thread M12, NOT M11 !

How to install or reinstall a pressure gauge and adapter?

Check my bellow tutorial !

Used as standard on the La Pavoni Romantica GRL and Stradivari Gran Romantica SGR.

Also used with the Gaggia Factory G106.

As a general rule (or it used to be one), the M12 thread is used on older machines, that usually have the metal sight glass cover from factory.
The M11 thread is used on newer LP machines. But now, I see more and more M12 adapters and threads used on new machines, so best before purchasing is to check your existing thread.

Please purchase only after you carefully checked your existing thread ! I do not accept returns after the shipping is received by the customer.

HOW DO YOU DO THAT?

You can easily find out what type of adapter thread you need, by simply removing the sight glass top screw (with the long screwdriver channel on it) and measure the EXTERIOR thread diameter.
If it shows 11 mm (or almost 11 mm), you need the M11 and if it shows 12 mm (or almost 12 mm), you need the M12 thread type.
It’s best to use an electronic ruler in order to do this measuring. But classic one is fine also of course.

This adapter can be used on any upper sight glass with M12 thread on top, new or old machines.