Check the listing for details. Furman P-1800 AR Voltage Regulator / Power Conditioner. Condition: New. Listed at 1199.99 USD. Top-tier Voltage Regulation and Power Conditioning Sags, brownouts, and voltage spikes will wreak havoc on your gear. But with the Furman P-1800 AR in your rack, these equipment-damaging menaces will be non-issues. No matter what comes out of a power outlet, the P-1800 AR will feed your gear a constant output of 120-volt power. Furthermore, the P-1800 AR leverages Furman's Linear Filtering Technology to purify AC power, thereby minimizing line noise and certifying optimal performance for your gear. You also get the company's Series Multi-Stage Protection and Extreme Voltage Shutdown to protect your equipment from errant voltage surges and spikes. Wherever you plug your gear in, the Furman P-1800 AR will deliver safe, reliable power that safeguards your gear against malfunction or damage.