NANPU 1/4" NPT Air Compressor Filter & Pressure Regulator Combo w/Gauge | 5-micron brass element water/oil separator, poly bowl, semi-auto drain, 20 SCFM, 0-150 psi gauge—for airbrush & air tools

This is a solid little regulator\filter. Works just fine. It comes with two 1\4npt nipples and a 1\4npt, male and female quick disconnect. The nipples are made from aluminum and the quick disconnect is plastic. I was actually surprised I got these, guess I didn't read the info. I know, aluminum and plastic? I'm sure if you used them they would work just fine. The only complaint I have is that the adjustment knob is kinda slick and smooth and tapered a bit making it hard to adjust because you need to pull the knob up to unlock before turning. This has a "semi automatic" drain on the filter bowl. This means that when there is no pressure going to the regulator the little valve is open and will drain liquid. When you turn on your compressor the regulator will sound like it's leaking air for a few seconds until it reaches about 5 psi and the bowl valve will seal and you're good to go. If your system is always pressurized you will have to disconnect the air to the regulator to drain any accumulated water in the bowl. Pro tip: Do not connect this directly on the compressor. Connect 25 to 50 feet of air hose to the tank. At the end of that hose connect the regulator\filter. Doing this allows the hot air coming from the compressor to condense the water vapor into liquid water so the filter can catch it. This is important when you are doing spraying or blowing and the compressor is running a lot. Also, the specs may say that this unit can be used up to 175 psi, but if you don't need 175 psi adjust the output to 125, of you can.

It works as it should, easy installation, looks sturdy, need to see over time how it behaves, the moisture removal valve operation is new to me, but it's a habit, looks more durable than the previous one.

I'm pleased with this little regulator. I'm using it only for a small oilless airbrush compressor, and it works fine for my purposes. I like the automatic water separator bleed, although my compressor doesn't move air fast enough to set it automatically (I have to manually hold it shut for a moment at every startup). This way I never have to remember to dump it before running into problems with my airbrushes. This was worlds away better than the original regulator that came on my compressor.

Easy to assemble, works great

This was really easy to set up and adjust to what seems like accurate settings. I like how the water separator works and the fittings are air tight and easy to use.

Real accurate and easy, regulating air pressure fine product

The plastic air fittings they supply leak terribly. Luckily I had enough metal fittings to fix that.

Very cost effective item. Works great, I like the automatic drain feature.

This was purchased tp replace a different brand I had to send back due to it being broken and generally low quality. This one arrive well packaged from the factory. Everything was in a foam enclosure and then a high gloss cardboard box. Attractive and lots of protection. The build quality was noticeably much better than the other brand yet was just a couple of dollars more. I installed in on my compressor and adjusted the regulator. Everything seems to be working perfectly.

I’m hesitant to give this ‘full stars’ because when I installed it, it worked perfectly. BUT After couple of power outages and pressure dips the o-ring that seals the moisture drain developed a slice and would perpetually leak. I ended up replacing the o-ring with another of a similar width from a dry-herb vaporizer I had laying around in a maintenance kit. That upgraded o-ring is holding beautifully and I have zero other complaints about this reg/separator. It does it’s job perfectly (as long as you’re the type of person to notice, identify, and repair minor issues like a leaky $0.05 o-ring Edit - new prong is holding up beautifully. I can’t tell you it absolutely wasn’t user error so, based on ease to repair and functionality pre and post repair….it’s properly solid for a home workshop

Worked great

Does what you'd expect. Bought for my airbrush and realized a little too late I had to buy some additional adapters to use it with my airbrush/compressor. Great quality, but I wish I'd realized sooner and bought a kit that included a 1/4" NPT to 1/8" BSP adapter. I also opted to use a metal quick connect, rather then the plastic one that's provided.

Didn't last the summer before the regulator started passing. Catches most of the moisture/oil but not all. Ordered a replacement while I purchase upgraded system. Would not buy again