Review on 🌲 Forestchill Ribbed Rubber Anti-Vibration Pads with Blue Foam Center Isolation Pad - 4" x 4" x 7/8" - for Heavy Duty Equipment such as Air Compressors, Washers, Dryers, and Air Conditioner Units (Pack of 4) by John Maskirta

I give one star for my particular application - I'm sure it will be great for others. I intended to use them on a 60 gallon, 475 lb vertical compressor. They are too soft and the compressor was unstable as it was very heavy. The compressor manufacturer (Quincy in my case) recommends not tightening the mounting bolts as this will cause other vibrations - the nuts should be loosened to allow some movement. I understand you can mess with bolt tension, but I'm not going to mess with a $1,500 compressor warranty. I stayed with them because I drilled them for screws. They may work for your application but not mine.