Date Region Description Price Seller
USAHere is a 3Leaf Audio Proton Envelope Filter for sale. An incredible opt...$350.00
AustraliaFor sale is a used 3Leaf Audio Proton V2 envelope filter pedal in good c...$334.37
USAFantastic limited edition dynamic filter ![3Leaf Audio Proton](https://...$450.00
USA 3 Leaf Audio Proton MK4 – Matte Black The Altitude Summary This U....$500.00
USAThe first model made by 3Leaf Audio, Very gently used; rarely taken outs...$295.00
USAVery good condition. Packaging is included but I don't think it's origin...$325.00