DOD ENVELOPEFILTER440 Envelope Filter Pedal with Level and Range Controls envelope-filter-440 - Canada's Favourite Music Store - Acclaim Sound and Lighting
Electro-Harmonix XO Q-Tron Plus Envelope Filter Guitar Effects Pedal | Guitar Center
Omega Music | ALL PEDAL Macrodose Envelope filter Pedal
What's your reco for a mini envelope filter? | TalkBass.com