Greenhouse Roadkiller Overdrive

They say:

The Greenhouse Effects Roadkiller Overdrive Pedal features an unprecedented number of options for distortion effects in one easy to use pedal. Anywhere from a warm clean and subtle saturation, to filthy grit and nasty distortion, this has you covered. The Tone knob has three separate settings for maximum variability that change the output depending on where the Gain knob is set. When set to the minimum, it's a flat EQ output; at mid gain, mid frequencies are emphasized; and at high, it has a much thicker, denser tone.

The Greenhouse Effects Roadkiller Overdrive is true-bypass, 100% handmade, and runs on a 9V power supply. The graphic novel-inspired artwork Greenhouse Effects is known for depicts Jim Morrison on this pedal.