Check the listing for details. BRI Medical Percussion Knee Reflex Hammer Tool Knee-Jerk. Condition: Used. Listed at 17.99 USD. No exceptions. We are here to serve you ! ENI MR-5001 RF Power Pulse Amplifier 5000W 500V 10-86 E&I Bruker B-RFCU Shim PWR. CHECK BACK OFTEN. WE UPDATE OUR INVENTORY REGULARLY. Buy It Now. Redfield IRC 2100 InfraRed Coagulator Complete Light Unit IRC2100 & Case Warrant.