MOD P-RMOD-4AB3C1B reverb tank - 2 spring, long decay. Like new, tested only. Used in Fender s with tube reverb from 1963-1990 such as the Princeton Reverb, Vibrolux Reverb, Deluxe Reverb, Super Reverb, Pro Reverb, Twin Reverb, Quad Reverb, Super Six Reverb, Vibrosonic Reverb. This also includes all reissue equivalents. $15 or will trade towardsfor Boss TU-3 tuner.