Fido’s Ultrasonic Gel 2.5L Fido’s Ultrasonic Gel is a non‐irritant, water‐soluble gel for use with ultrasonic therapeutic machines. Fido’s Ultrasonic Gel works as a connector, eliminating the air and forming a bond between the ultrasound probe and the skin. This allows the sound waves to travel directly to the tissues, beneath the skin, providing us to get clear images of the organ of our interest. How it works? Fido’s Ultrasonic Gel works as a connector and connects the ultrasound probe and the skin enabling the sound waves to travel directly to the tissues which provides us with a clear picture of an organ. You can also order on call 1300-838-787 (Mon - Fri: 9 AM To 7 PM AEST)