Greetings, I have four swinging filter reactors for sale or trade: Triad model C-32AL 20/4 HY. 35-350 mA DC 105 ohms working voltage 2850 V A.C. test = 5kv 4" L x 4" W x 4.5" H, ~5lbs. each, with 2.75" x 3" mounting centers (4 tabs with slots) asking $20 each + shipping, will ship all for $80.00 CONUS from Nashville, TN. Thanks, Robin Midgett KB4IDC VHF+ Glutton