Vocawah- Vowel Shift Filter- Guitar Effects by Subdecay
Amazon.com: MOOER Envelope Analog Filter Dynamic Auto Wah Pedal, Exaggerated slap back funk, Subtle sultry abience, Static frequency filter effects for Guitar and Bass : Musical Instruments
MXR M82 Bass Envelope Filter « Bass Guitar Effect
Low Pass Filter | Broughton Audio
Rossie | Pedals
Pedal Genie | DOD Envelope FIlter 440 | All Your Pedal Wishes, Granted
The Different Sounds You Can Create With A Step Filter Guitar Effect – FuelRocks
Electro-Harmonix XO Q-Tron Plus Envelope Filter Guitar Effects Pedal | Guitar Center