I use this to fill kegs with beer carbonated in my conicals to equalize pressure as beer fills the keg. It works perfectly and has reduced any foaming inside the keg. Thumbs up.

While I haven't fermented with it yet this combination valve and gauge makes it easy to check the CO2 level in a keg and makes carbonation much more precise. The parts and construction are high quality.

I found it to be aesthetically pleasing and the compact size a bonus. My only concern it tended to bleed off a few psi over the course of a few days. It wasn't a big deal. I just used my CO2 tank and regulator to bump it back up to the desired pressure. I made sure all connection points were wrench tight so my assumption is the pressure regulating valve has a slight leak.

I picked one of these up as it was the only available option. Out of the box it would not hold any pressure. After removing the end there was a tiny bur of metal blocking the valve from closing and making a solid seal. Once I removed it added some keg lube to the o ring it worked fine through two fermentations. The pressure gouge also is a bit off registering 6 PSI when it's 10.

Works great. I hesitated in buying this after listen to a competitor sell me on the red plastic option. Steel is real. This is a reliable device that I believe will out perform the plastic version over time.

The Spunding valve works as it should. I gave it 3 stars because the gauge is as cheap as they come. It’s actually crooked in relationship to its NPT fitting. I’ll probably change the gauge to a nice liquid filled one. Then it would be a 5 stare gauge.