New England Spas FREE SHIPPING ON ORDERS $200+ Account Checkout Cart Sauna Accessories Water Care Products Elemental Water Care Products (Chlorine) Elemental Water Change Supplies FreshWater Salt Water Care Products FreshWater Salt Water Change Supplies ACE Water Care Products ACE Water Change Supplies Bromine Water Care Products Bromine Water Change Supplies Sirona Water Care Products Sirona Water Change Supplies The Natural Water Care Products The Natural Water Change Supplies Frog @ease Cleaning Products & Supplies New England Spas Brand Filters Sundance Spa Filters HotSpring Spa Filters Jacuzzi Spa Filters Swim Spa Filters Filter Cleaning Products Hot Tub Accessories Covers & Cover Lifters Fragrances & Aromatherapy Steps Pillows & Jets Hot Tub Add On's Hot Tub Services Nav Menu 2 Nav Menu 3 Nav Menu 4 Nav Menu 5 Nav Menu 6 Nav Menu 7 Nav Menu 8 Home > Water Care Products > Sirona Water Care Products > Spa Down Our Price: $8.99 Description Lowers critical pH and alkalinity levels in water easily. Related Items Spa Cleanse NES Start Rite Pre-Filter Sirona Simply Waterline Control Zorbie Our Price: $39.99 Add Our Price: $39.99 Add Our Price: $29.99 Add Our Price: $22.99 Add Alkalinity Increaser Sirona Simply Sanitizer Spa Up Sirona Simply Test Strips Our Price: $14.99 Add Our Price: $39.99 Add Our Price: $11.99 Add Our Price: $24.99 Add