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The Krytonite 454 Big Block RDA is a vertical style dripper that can accommodate single, dual and up to quad coil builds! The 454 is truly a Big Block RDA, that uses a brass ring that wedges the wires against the deck to ensure a perfect connection every time! Note: the positive screw that comes installed may be too short for some thin wire builds but the unit comes with longer screws to remedy this.
What make this RDA great: