SNS 1/2”NPT Compressed Air Filter Regulator Piggyback Combo, Semi-auto Drain, 5 Micron Brass Filter, Gauge and Bracket, Poly Bowl with Metal Guard AW4000-N04A

Nicer than the one that I replaced. Solid construction.

Good product well built

This worked great !! I bought 2 others , one from Home Depot and another from Harbor Freight that didnt work at all . This valve could adjusted by lifting the knob and turning it til you reached the desired psi , then pushing the knob down (locking it) . The others were not true regulator valves . If you turned them to regulate the pressure they would let the air out of the compressor tank until it was at the pressure you desired , the only problem was that the compressor would then run non stop .

Seems to be a good product. Will see how it stands up to every day use.

The 5-stars are ONLY for the functioning of the regulator itself. See below for what I think of the manufacturer, the seller and the provided documentation.This Regulator, 5-Stars: This regulator functions well with plenty of air flow. It's easy to adjust and holds its set pressure very well. It does not leak, with this caveat: When installed correctly! No doubt many others have returned this regulator because they have installed it backwards, which causes it to leak and hiss under the adjustment knob. Meaning, it has been installed with the compressor air-flow going into the OUTLET port and the air hose hooked up to the INLET port.The Manufacturer, 1-Star: The regulator I replaced, and others I looked at, had markings showing the direction of air flow embossed into the casting. This one does not. Meaning, you have a 50/50 chance of hooking it up in the correct direction. In my case, my compressor's air flow moves from the piston on the right to the air hose left. I had to remove the 1/8" NPT plug from the opposite side of the regulator and install the pressure gauge on that port. And then install that 1/8" NPT plug into the port with the orange rubber plug.The Seller and/or Manufacturer, 1-Star: NO INCLUDED DOCUMENTATION. If either one had simply included markings or a sticker on the casting, or included a sheet of paper with a diagram showing the direction of air flow, I am positive there would be a lot fewer returns for "leaking and defective" regulators. Me included.After dealing with these issues and finally finding the included diagram from the Amazon product listing page, I got it to work perfectly.

Why did you pick this product vs others?:Fit and functionality Worked great

Do NOT buy the piggyback unless you want a leak within a week. My five star review is ONLY for the regulator. I tried the piggybacks and they all developed a leak where valve is installed in the bottom of the bowl in less than a week. 0 stars for the piggyback.I tried some cheaper piggybacks/regulators and the gauges are trash, you have to tap them to get the current air pressure, not on this one! This one is very responsive whenever you make any adjustments. I am currently installing one of these or this with the added filter/moisture trap (for only $8.00 more!) at every wall manifold/drop in my garage. (I am leaving the drop on the ceiling unregulated) if I need to use any pneumatic staplers, nailers or blow guns I have the ability to adjust the air pressure to perfectly suit the tool I am using at whichever drop I am at. I used some T-nuts I printed on my 3D printer to mount the regulator to the Gladiator wall panel and used various brass hardware to route the air from the manifold to the regulator for a rock-solid, no-leak, regulated compressed air hookup. The output has a 90 degree elbow and a Milton 5 in 1 1/4” NPT quick coupler.

Looks good, but junk. After approximately 6 uses, it would not stop leaking air when turning the regulator to off.