Single-step propane butane gas regulator. Assigned for home usage. Designed for appliances supplied from gas cylinder with manual valve. Regulator can be applied to cylinders with a nominal gas capacity to 11kg. Made for Eastern Europe markets. In accordance with EN 16129.

The main purpose of manometer usage is checking installation tightness.
Manometer allows to do a tightness test when mounting new installation and indicates gas low level in cylinder.

In order to do a tightness test, follow steps below:
- mount your system
- open gas cylinder valve
- fill up hose with gas
- turn off cylinder valve and „keep» gas in hose
In this moment, gas in in the system. If this system is gastight, manometer indicator will stay still. If there is a case of leakage, indicator will move slowly to zero. In this case, user must find leakage using soap water and repair it afterwards.

Additional advantage of manometer is informing only of low gas level.
Actual gas level can be observed as below:
- blue colour: cylinder empty, does not contain any liquid gas. Do not use cylinder until it is filled up again.
- yellow colour: early warning- plan filling up with gas as soon as it is possible. Estimated gas level allows usage for 1 or 2 hours. Pressure in cylinder higher than 1 bar.
- green colour: sufficient gas level in cylinder. Ready to use. Estimated gas level allows usage for more hours. Pressure in cylinder from 1 to 12 bar.
Manometer does not indicate precise gas level, but informs about necessity of cylinder change soon.
Thanks to it, user makes sure cylinder is empty and does not change cylinder that still contains gas.