Check the listing for details. Milwaukee MA9072S Oxygen Electrolyte Solution. Condition: New. Listed at 24.99 USD. DESCRIPTIONThe MA9072S electrolyte fill solution is designed for Milwaukee's MA860 Galvanic Dissolved Oxygen probe and MA861 Dissolved Oxygen membranes. A high quality electrolyte solution is crucial to the performance of your dissolved oxygen probe.DESIGN FEATURESPRECISE FORMULATIONFactory mixed using reagent grade chemicals in a dedicated, temperature controlled environment.TRACEABLEProduct labeled with product code, lot number and expiration date.SECUREAir tight bottle with tamper-proof seal.Easy drop tip for accurate volume control.EXTRA TIPSWatch for the membrane having wrinkles or stretch marks. If you see wrinkles, replace with a new membrane.Always use fresh electrolyte solution (MA9072S). SPECIFICATIONSPackage: BottleSize: 30 mLQuantity: 1Certificate of Analysis: No