 The discontinued Lexicon JamMan, Gibson Echoplex Digital Pro, Electrix Repeater, and Looperlative LP1 are 19" rack units.The Boomerang "Rang III" Phrase Sampler, DigiTech JamMan (), Boss RC-300 and the Electro-Harmonix 2880 are examples of popular pedals.As of December 2015, the following pedals are currently in production