{"product_id":"spaguard-spa-calcium-hardness-increaser-12-oz-6-pack","title":"SpaGuard Spa Calcium Hardness Increaser, 12 oz, 6 Pack","description":"\u003cp\u003eSpaGuard Calcium Hardness Increaser Spa (12 oz) (6 Pack) SpaGuard Calcium Hardness Increaser adds 1 tbs. per 100 gallons to increase the calcium hardness of your hot tub 25ppm. Prevents equipment corrosion and plaster etching due to low calcium hardness. Product Information: Granular Calcium Chloride 1 tbsp per 100 gallons Increases calcium hardness 25ppm Prevents equipment corrosion due to low calcium hardness Prevents plaster etching due to low calcium hardness Directions for Use: 1. Apply proper amount of product as measured by accurate test method 2. Do not pre-dissolve 3. Brush off any granules that do not dissolve immediately 4. Run circulation system for 30 minutes after application.\u003c\/p\u003e\u003cdiv class=\"replacement-content\"\u003e\u003c\/div\u003e\u003ch3\u003eFEATURES\u003c\/h3\u003e\u003cul\u003e\n            \u003cli\u003eBoosts Calcium Hardness: SpaGuard's Calcium Hardness Increaser enables spa owners to increase their calcium hardness with this easy to use granular formula, which will boost your calcium hardness to above the danger zone, where low levels cause extensive corrosion of plumbing, jets, fixtures, and tub surfaces.\u003c\/li\u003e\n\u003cli\u003eKeeps Optimal Calcium Level: It helps raise the calcium level steadily to the optimal calcium hardness level of 200-400 ppm, to keep the spa water from becoming corrosive to heating elements and other equipment.\u003c\/li\u003e\n\u003cli\u003eProtects Spa \u0026amp; Equipment for Longer Life: This helps protect your hot tub against corrosion, extending the life of your equipment and hot tub surfaces.\u003c\/li\u003e\n\u003cli\u003eCompatibility: Calcium Hardness Increaser is compatible with chlorine, bromine, ozone and biguanide sanitizers.\u003c\/li\u003e\n\u003cli\u003eTested and Proven Effective: SpaGuard products are known for delivering reliable results and making spa care less complex. SpaGuard carries an extensive line of spa solutions that match your unique needs.\u003c\/li\u003e\n        \u003c\/ul\u003e\u003cdiv class=\"replacement-content\"\u003e\u003c\/div\u003e","brand":"SpaGuard","offers":[{"title":"Default Title","offer_id":45283036856502,"sku":"SpaGuard Calcium Hardener 12oz 6pk","price":47.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0642\/6453\/6246\/files\/61mvw-k0SXL.jpg?v=1784914757","url":"https:\/\/prostarpoolsupply.com\/products\/spaguard-spa-calcium-hardness-increaser-12-oz-6-pack","provider":"Prostar Pool Supply","version":"1.0","type":"link"}