I rated this product based on its construction quality, my perception of its durability, finishing.
Construction. This thing is all metal, and it feels very heavy duty. I tried but could not dent lid the while putting it on. The intake tube is also very sturdy, and seems like it will last forever. The throat feels like some kind of cast metal, it may rust in time, but it's plenty thick. The river washer/seal between the throat and the filter housing seems a little stiff and brittle, but I shouldn't need to remove it any time soon. The bolt and wing nut both seem to be decent, possibly nickel plated.
Durability. Like I said, this thing is heavy, and all metal. The finish should give good rust and corrosion protection. The weak point on this may be the threads on the throat. It's made of some kind of cast metal that might rust or strip, but I won't be torquing this into the aluminum head of my air compressor. It should last forever.
Finish. It has a black lacquer finish, glossy and thick, which also makes the lid fit very tightly. It's pretty smooth and looks good, but for this price don't get too picky. It has some runs and blemishes, but overall I think it looks good.
Fleet. What can I say? Is a round pleated paper filter, and it should keep the majority of the dust and debris out of my air compressor.
One word of caution. Make sure you order the right size for your machine! 3/4" MPT is actually about 1" outside diameter. My original plastic filter cover had a thread outside diameter of 3/4" so I had to use some pipe adapters to make it fit.
Overall, great product, well made, and should provide long service.

Fit as expected but compressor sits outside they don't seem like they are a waterproof. I used tape to seal the main covers.

Got the wrong size pipe. For my conpressor but made it fit with a reducer. Only thing is that the quality of the part that threads on to the head of the compressor is quite cheap..

These are quality filters.Just what I wanted for my compressor.It took a couple of pipe fittings and they look and work great.I had no idea that something like this was available.They are 3 times bigger than the stock filters that came with the compressor.I do a lot of finish work with lacquer and polyurethane and I was pretty sure the originals were already stopped up.These are great,shipping was good,Thanks Amazon!

I ordered this because I wanted to have better air flow going into the compressor. I knew the thread was larger. 3/4" compared to my original 1/2". I went to a local hardware store got a adapter and it is much more quieter and I know its from having a much larger filter than the original Husky one. I would buy again from this seller. Delivered fast also.