Is this a decent water pressure gauge?

[slippy]

Pressure Gauge for Aquarium RO Reverse Osmosis System with 1/4: Amazon.co.uk: Kitchen & Home

Just want to plug into a tap and get pressure. This one looked like I could also plug it before the ro as well (in future).

 

[Barney]

Yes that will be fine. Looks the same as the one I bought from collins water products.

The Collins Water Products

That one will plug into a 1/4 inch ro, but you will need another hose adaptor to fit onto outside tap.