Putting the "Ultra" in ultrasonic record cleaning! G-Sonic is the additive your ultrasonic machine needs. This gentle proprietary blend of surfactant and emulsifier reduces water's surface tension so cavitation reaches deep into microgrooves for superior cleaning results. One 1 oz bottle makes up to 60 gallons of treated solution. Simply add ten drops to a gallon of distilled water, shake for five seconds, and add to your ultrasonic tank. HumminGuru users: add just one drop directly to the filled bath tank for immediate performance improvement. For best results, pre-clean records manually with G2 or G3 Fluid before the ultrasonic bath. Designed and made by GrooveWasher in Kansas City, Missouri, USA.