Here is a very nice Electro-Harmonix Stereo Poly Chorus Reissue circa late '90s/early 2000s. This pedal is in very good pre-owned condition and comes with it's original power supply.

This all analog EHX produces some lovely tones ranging from subtle to lush. Beautiful double tracking thickens up the mix and the chorus on this can only be described as lush. You can also get pretty crazy when approaching the flanger and filter matrix sections of this circuit.

A rare find is a reissue of the original Poly Chorus used famously by Kurt Cobain on the In Utero album.