Zodiac ® Pool Systems, Inc. today announced the availability of its new Nature 2 product, Cense ™ , a line of oxygen infused aromas for spas and hot tubs that combines exquisite, subtle fragrances with a powerful, chlorine-free oxidizer to cleanse water while adding the stress-relieving benefits of aromatherapy. In fact, Cense is the only MPS (potassium peroxymonosulfate) on the market that ...