Doheny’s is pleased to offer free next day delivery at no additional charge to most of the US for all Doheny's brand chemicals and many of our most popular swimming pool supplies. Next Day Delivery Service does not mean Next Day Air, but simply that your qualifying products will be shipped from the warehouse closest to you resulting in delivery the next day.FROG Serene® Floating System uses pre-filled mineral and bromine cartridges that snap into a reusable floating holder and works in any spa.
The FROG Serene® Floating System transforms your spa into the perfect environment for soothing relaxation with up to 50%* less bromine than standard bromine spas. Cartridges are easily adjusted to meet the sanitizing needs of virtually any size spa. Replace the mineral cartridge every 4 months when you drain and refill your spa. The bromine cartridge will last 2-4 weeks depending on use.
