Adox Adostop ECO Stop Bath with Indicator Concentrate (16.9 oz)

The ADOX Adostop ECO Stop Bath with Indicator Concentrate is a citric-acid-based, odorless liquid designed for processing black and white photographic films and papers. It interrupts the development process and neutralizes the developer, preventing the fixer from deacidifying due to carryover and tip-over. This mildly lemon-scented liquid changes color from yellow to blue-violet to indicate when it's used up. It contains no acetic acid or biocides. To create a working strength solution, mix it at a standard 1:19 dilution ratio.