FROG Serene® (Bromine) Cartridge - Purple 7.1 oz - 33% More Bromine Compared to Yellow Cartridge Oxidizer Rento Midsummer Birch Sauna Scent

Rento Midsummer Birch Sauna Scent - Sauna Aromatherapy - Enjoy the summery fragrance of fresh birch leaves while relaxing in the sauna

protecting your pH from sudden swings and making every other step in water care work better

Built-in flocculant quickly suspends minerals to clarify spa water for clean results

Spazazz® RX Sleep Therapy Spa Aromatherapy Crystals - get ready for a good night's sleep

• Envoy 2014-2018

FROG Serene® (Bromine) Cartridge - Purple 7.1 oz - 33% More Bromine Compared to Yellow Cartridge Oxidizer Rento Midsummer Birch Sauna ScentThe FROG Serene (Bromine) Cartridge is for use in the Serene In Line System for hot tubs and spas. This purple bromine cartridge contains 33% more bromine than the standard yellow bromine cartridge. Size: 7. 1 oz The Serene (Bromine) cartridge is the active sanitizer in this system. Use in combination with the FROG blue Mineral cartridge, found here. Not sure how to maintain or start up your hot tub on this system? Download the FROG Serene (bromine)