Amazon.com: Pro Co Lil' RAT Distortion/Fuzz/Overdrive Pedal : Musical Instruments
ProCo RAT Distortion Sound Demo (no talking) with Korg Minilogue, Medusa and SH-01a - YouTube
ProCo Rat 2 Distortion w/ Keeley 3-Way Mod | Reverb
Amazon.com: Pro Co RAT2 Distortion Pedal : Musical Instruments
Keeley Compressor Plus 4-Knob Compressor Pedal + Pro Co RAT2 Value Bundle | eBay
Guitar Pedal X - GPX Blog - Black Mass's 1312 V3 Rat-style Distortion is another worthy contender with 8 Great Clipping Options and 18V charge pump onboard
Pro Co RAT 2 - ranked #1 in Distortion Effects Pedals | Equipboard