PARKER LABS AQUASONIC-100 CLEAR ULTRASOUND GEL 03-50 has no fragrance or color. For diagnostic and therapeutic medical ultrasound procedures. Acoustically correct for the broad range of frequencies used. Hypoallerganic, bacteriostatic, and non-irritating. Water soluble too. 5-Liter SONICPAC with dispenser. 1/EA, 4/CS. Price per each.