Description The Powermate vibration isolator is part of the line of Powermate genuine replacement parts. A vibration isolator is used to help reduce the vibration and noise a larger compressor produces. Mount the large, stationary compressor to the floor with Powermate vibration isolators for minimized reverberation.4 in. x 4 in. x 1/2 in.For use with stationary unitsPowermate vibration isolator can also help prevent wear and tear to the compressor and air hoses caused by the intense vibration of the unit during usePowemate vibration isolators curb the noise and vibration produced by large stationary compressors