Taylor FAS-DPD Titrating Reagent for Chlorine, 16 oz | R-0871-E C7499 and Sunbelt Spas) use two

and Sunbelt Spas) use two 6CH-940 cartridges installed side-by-side for a complete filter service

Fun and frosty ice cream cone with sprinkles

The Blue Stuff maintains stability at elevated sanitizer levels

Add one bottle of Filter Perfect to the skimmer

Taylor FAS-DPD Titrating Reagent for Chlorine, 16 oz | R-0871-E C7499 and Sunbelt Spas) use twoTaylor FAS DPD TTR Reagent 16 Oz bottle Taylor formulates its reagents to remain effective for at least one year, with only very few exceptions (molybdenum indicator in liquid form is one; after four months old it should be tested against a standard periodically). As a general precaution, replace all reagents more than one year old, or at the beginning of a new testing season. Used to test for chlorine Taylor R 0871 E Features and Benefits: Storing