Aquasonic 100 Non Sterile 20 Gram Packette Bx 100 B P Parts Accessories Gradient compression for relief and 00298E Gradient compression for relief and prevention of venous disease * Therapeutically effective sheer lightweight and fashionable * 5 * White * Please note that a counterweight is available (model 3P7039X ) for the 350# models only which were made sometime before April '04 * There is no counterweight available for the upgraded 400 lb * World standard for medical ultrasound transmission * The most widely used gel for diagnostic and therapeutic medical ultrasound * Non Sterile * Recommended for all procedures where a viscous gel is required