Used and in great condition, the Keeley Filaments High Gain Distortion pedal delivers raw, amp-like distortion perfect for heavy rock and metal tones. With a 3-band EQ, presence control, and two gain stages through its Boost and Crunch toggles, the Filaments gives players precise tone shaping and dynamic response. Built to last with a rugged metal chassis and true bypass switching, it operates on standard 9V DC power and is designed to push your amp hard without compromising clarity. Whether you're riffing in drop tunings or soloing with searing leads, this pedal retains articulation and punch, making it a versatile tool for any gain-hungry guitarist.