Heritage Infectious Waste Bag, 1 Case of 200 20 30 Thigh High This hydrocolloid skin barrier ring Endoscopy This hydrocolloid skin barrier ring is pre cut for immediate use Dual Channel * 4000 mHz * Unit comes complete with: set of 2 wires pack of 4 silver silver chloride self sticking electrodes 9V alkaline battery ac adaptor instruction book and attractive carry case * Dual channel quadra polar * Adjustable pulse amplitude * Carrier frequency plus interference frequency * Sweep and treatment timers * Shipping Carton Size: 12 L x 10 W x 6 H * HCPCS Suggested Code: E0730 * Interferential stimulators use a fixed carrier frequency of 4 000 Hz per second and also a second adjustable frequency of 4 001 4 400 Hz per second * When the fixed and adjustable frequencies combine (heterodyne) they produce the desired signal frequency (Interference frequency) Meets federal and state regulations for tear resistance of 480 grams (ASTM D1922 94a) and impact resistance of 165 grams (ASTM D1709 97) Individually folded for easy dispensing