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 BaquaSpa Water Care Products BaquaSpa Water Change Supplies The Natural Water Care Products The Natural Water Change Supplies Cleaning Products & Supplies New England Spas Brand Hot Tub Filters Sundance Spas HotSpring Spas Jacuzzi Spas 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 > Calcium Booster Our Price: $11.99 Description Increases water hardness levels on a fresh refill. Note directions for amount application. Limit three per customer. Related Items NE Spas Enzyme Spa Down SeaKlear Defoamer with Clarifier Spa 56 (Granular Chlorine) - 2lb Our Price: $19.99 Add Our Price: $8.99 Add Our Price: $29.99 Add Our Price: $29.99 Add The Natural Sirona Simply Oxidizer Spa Cleanse Spa 56 (Granular Chlorine) - 5lb Our Price: $39.99 Add Our Price: $24.99 Add Our Price: $39.99 Add Our Price: $73.99 Add