PARKER LABS AQUAPONIC-100 CLEAR ULTRASOUND GEL 03-08 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. 250mL (0.25 liter) bottle. 1/EA, 12/BX. Price per each.