Liquid concentrate at 1 to 40 dilution, 25.4 fl oz bottle makes 8 gallons of ready to use solution, triple the yield of 8 oz bottles. Ultrasonic Cleaner Solution Concentrate - 25.4 Fl Oz Makes 8 Gallons for Eyeglass, Sunglasses, Retainer, Denture, Aligner, Razor and Gun Parts.