The PHD Print Head Doctor 15 PHD15 Digital Print Head Cleaner Ultrasonic is a high-quality cleaning solution designed specifically for print heads. Made by the reputable brand Print Head Doctor, this cleaner is a single unit made in the United States. It utilizes ultrasonic technology to effectively remove build-up and residue from print heads, ensuring optimal performance and print quality. This product is a must-have for anyone looking to maintain the efficiency and accuracy of their printers.