Maintain the precision of your pool water testing with our 2 oz Buffer Solution pH 4.0. This essential replacement reagent is designed for use with various Taylor pool water testing kits, ensuring your pH tests are accurate and easy to read. Our buffer solution helps stabilize the pH readings, providing reliable results for optimal pool maintenance. Proper storage is crucial to maintain its effectiveness—store it between 36°F and 85°F, avoid temperature extremes, and keep it out of direct sunlight. Trust in the quality and consistency of our buffer solution for all your pool testing needs.