{"product_id":"frog-serene-cartridge-kit","title":"King Technology FROG Serene Cartridge Kit -- 1 Mineral + 3 Bromine (01-14-3856)","description":"\n\u003cstyle\u003e\n  .frogsr-wrap, .frogsr-wrap * { box-sizing: border-box; }\n  .frogsr-wrap {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #1a1a1a;\n    line-height: 1.6;\n  }\n\n  \/* Hero (compact) *\/\n  .frogsr-hero {\n    background: linear-gradient(135deg, #0080ff 0%, #e8f4fa 100%);\n    color: #fff;\n    padding: 36px 32px;\n    border-radius: 14px;\n    text-align: center;\n    margin-bottom: 28px;\n  }\n  .frogsr-hero h1 { font-size: 2em; margin: 0 0 8px; font-weight: 800; letter-spacing: -0.02em; }\n  .frogsr-tagline { font-size: 1.1em; opacity: 0.95; margin: 0 0 18px; }\n  .frogsr-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }\n  .frogsr-badge {\n    background: rgba(255,255,255,0.18);\n    border: 1px solid rgba(255,255,255,0.3);\n    color: #fff;\n    padding: 6px 14px;\n    border-radius: 50px;\n    font-size: 0.85em;\n    font-weight: 600;\n  }\n\n  \/* Intro *\/\n  .frogsr-intro {\n    max-width: 800px;\n    margin: 0 auto 32px;\n    text-align: center;\n    font-size: 1.05em;\n    color: #333;\n  }\n\n  \/* Stat strip *\/\n  .frogsr-stats {\n    background: linear-gradient(135deg, #003a70 0%, #0080ff 100%);\n    color: #fff;\n    border-radius: 14px;\n    padding: 24px;\n    display: grid;\n    grid-template-columns: repeat(5, 1fr);\n    gap: 12px;\n    margin-bottom: 36px;\n  }\n  .frogsr-stat { text-align: center; 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color: #444; font-size: 0.95em; }\n\n  \/* Warning *\/\n  .frogsr-warning {\n    background: #fff7e0;\n    border-left: 5px solid #f5a623;\n    border-radius: 10px;\n    padding: 18px 22px;\n    margin-bottom: 36px;\n  }\n  .frogsr-warning h4 { margin: 0 0 6px; color: #8a5b00; font-size: 1.05em; }\n  .frogsr-warning p { margin: 0; color: #5a3d00; font-size: 0.95em; }\n\n  \/* Spec grid *\/\n  .frogsr-spec-grid {\n    display: grid;\n    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));\n    background: #f7f8fc;\n    border-radius: 14px;\n    overflow: hidden;\n  }\n  .frogsr-spec-row {\n    display: flex;\n    justify-content: space-between;\n    gap: 12px;\n    padding: 12px 18px;\n    border-bottom: 1px solid #e1e6ed;\n    font-size: 0.95em;\n  }\n  .frogsr-spec-key { font-weight: 600; color: #0066cc; }\n  .frogsr-spec-val { color: #1a1a1a; text-align: right; }\n\n  \/* FAQ *\/\n  .frogsr-faq-card {\n    background: #fff;\n    border: 1px solid #e1e6ed;\n    border-radius: 10px;\n    padding: 18px 22px;\n    margin-bottom: 12px;\n  }\n  .frogsr-faq-card h4 { margin: 0 0 6px; color: #0066cc; font-size: 1.02em; }\n  .frogsr-faq-card p { margin: 0; color: #333; font-size: 0.95em; }\n\n  \/* CTA *\/\n  .frogsr-cta {\n    background: linear-gradient(135deg, #0080ff 0%, #e8f4fa 100%);\n    color: #fff;\n    border-radius: 14px;\n    padding: 32px 28px;\n    text-align: center;\n  }\n  .frogsr-cta h2 { font-size: 1.6em; margin: 0 0 8px; }\n  .frogsr-cta p { margin: 0 0 18px; font-size: 1em; opacity: 0.95; }\n  .frogsr-perks { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }\n  .frogsr-perk {\n    background: rgba(255,255,255,0.18);\n    border: 1px solid rgba(255,255,255,0.3);\n    padding: 6px 14px;\n    border-radius: 50px;\n    font-size: 0.88em;\n    font-weight: 600;\n  }\n\n  \/* Responsive *\/\n  @media (max-width: 700px) {\n    .frogsr-hero h1 { font-size: 1.5em; }\n    .frogsr-stats { grid-template-columns: repeat(2, 1fr); }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"frogsr-wrap\"\u003e\n\n  \u003csection class=\"frogsr-hero\"\u003e\n    \u003ch1\u003eKing Technology FROG Serene Cartridge Kit\u003c\/h1\u003e\n    \u003cp class=\"frogsr-tagline\"\u003eFour months of silky, low-bromine water.\u003c\/p\u003e\n    \n    \u003cdiv class=\"frogsr-badges\"\u003e\n      \u003cspan class=\"frogsr-badge\"\u003eAuthorized King Technology Dealer\u003c\/span\u003e\u003cspan class=\"frogsr-badge\"\u003eFree Shipping\u003c\/span\u003e\u003cspan class=\"frogsr-badge\"\u003eUp To 50% Less Bromine\u003c\/span\u003e\u003cspan class=\"frogsr-badge\"\u003e1 Mineral + 3 Bromine\u003c\/span\u003e\n    \u003c\/div\u003e\n    \n  \u003c\/section\u003e\n\n  \u003cp class=\"frogsr-intro\"\u003eThe \u003cstrong\u003eKing Technology FROG Serene Cartridge Kit (MPN 01-14-3856, SKU PST-01143856)\u003c\/strong\u003e is the complete refill set for your FROG Serene floating or in-line spa sanitizing system, formerly sold as Spa Frog. You get one blue mineral cartridge and three yellow bromine cartridges, enough to keep a hot tub clean, soft, and clear for roughly a full four-month season. FROG minerals work alongside a low, steady dose of bromine so your water stays balanced with \u003cstrong\u003eup to 50% less bromine\u003c\/strong\u003e than bromine alone.\u003c\/p\u003e\n\n  \u003csection class=\"frogsr-stats\"\u003e\n    \u003cdiv class=\"frogsr-stat\"\u003e\n\u003cdiv class=\"frogsr-stat-value\"\u003e1 + 3\u003c\/div\u003e\n\u003cdiv class=\"frogsr-stat-label\"\u003eMineral + Bromine\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-stat\"\u003e\n\u003cdiv class=\"frogsr-stat-value\"\u003e50%\u003c\/div\u003e\n\u003cdiv class=\"frogsr-stat-label\"\u003eLess Bromine\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-stat\"\u003e\n\u003cdiv class=\"frogsr-stat-value\"\u003e4 mo\u003c\/div\u003e\n\u003cdiv class=\"frogsr-stat-label\"\u003eMineral Life\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-stat\"\u003e\n\u003cdiv class=\"frogsr-stat-value\"\u003e150-600\u003c\/div\u003e\n\u003cdiv class=\"frogsr-stat-label\"\u003eGallon Range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-stat\"\u003e\n\u003cdiv class=\"frogsr-stat-value\"\u003e2-4 wk\u003c\/div\u003e\n\u003cdiv class=\"frogsr-stat-label\"\u003ePer Bromine Cart\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"frogsr-section\"\u003e\n    \u003ch2\u003eWhy PST Customers Pick This\u003c\/h2\u003e\n    \u003cdiv class=\"frogsr-feature-grid\"\u003e\n      \u003cdiv class=\"frogsr-feature-card\"\u003e\n\u003cdiv class=\"frogsr-emoji\"\u003e🧪\u003c\/div\u003e\n\u003ch5\u003eMinerals Plus Bromine\u003c\/h5\u003e\n\u003cp\u003eFROG minerals create a residual that works together with a low level of bromine to destroy contaminants faster than bromine used on its own.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-feature-card\"\u003e\n\u003cdiv class=\"frogsr-emoji\"\u003e💧\u003c\/div\u003e\n\u003ch5\u003eSilky, Soft Water\u003c\/h5\u003e\n\u003cp\u003eThe mineral cartridge softens your spa water, so it feels gentler on skin and eyes and carries far less of that heavy chemical odor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-feature-card\"\u003e\n\u003cdiv class=\"frogsr-emoji\"\u003e🎛️\u003c\/div\u003e\n\u003ch5\u003eAdjustable Bromine Dial\u003c\/h5\u003e\n\u003cp\u003eEach yellow bromine cartridge uses a water-activated diffuser with a dial you turn to match your tub size and bather load. No daily scooping.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-feature-card\"\u003e\n\u003cdiv class=\"frogsr-emoji\"\u003e🔄\u003c\/div\u003e\n\u003ch5\u003eSnap-In Refills\u003c\/h5\u003e\n\u003cp\u003eBoth cartridges snap into the FROG Serene floating cap or twist into the in-line basket in under a minute. No tools, no measuring cups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-feature-card\"\u003e\n\u003cdiv class=\"frogsr-emoji\"\u003e📅\u003c\/div\u003e\n\u003ch5\u003eFour-Month Supply\u003c\/h5\u003e\n\u003cp\u003eOne mineral cartridge lasts about four months or until you drain and refill, and three bromine cartridges carry you across that same stretch.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-feature-card\"\u003e\n\u003cdiv class=\"frogsr-emoji\"\u003e✅\u003c\/div\u003e\n\u003ch5\u003eGenuine King Technology\u003c\/h5\u003e\n\u003cp\u003eAuthentic FROG Serene 01-14-3856 cartridges built to the exact fit and fill of your Serene holder. No off-brand refills that leak or jam.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \n  \u003cdiv class=\"frogsr-warning\"\u003e\n    \u003ch4\u003eHandling Notice\u003c\/h4\u003e\n    \u003cp\u003e\u003cstrong\u003eBromine is a strong oxidizer, handle the yellow cartridge with care.\u003c\/strong\u003e Keep cartridges sealed and dry until use, never mix bromine with chlorine or other chemicals, and wash your hands after loading. Add cartridges to a filled, circulating spa only, and always maintain bromine between 3 and 5 ppm. Store the kit in a cool, dry place away from children and pets.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \n\n  \u003csection class=\"frogsr-section\"\u003e\n    \u003ch2\u003eSpecifications\u003c\/h2\u003e\n    \u003cdiv class=\"frogsr-spec-grid\"\u003e\n      \u003cdiv class=\"frogsr-spec-row\"\u003e\n\u003cspan class=\"frogsr-spec-key\"\u003eManufacturer\u003c\/span\u003e\u003cspan class=\"frogsr-spec-val\"\u003eKing Technology\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-spec-row\"\u003e\n\u003cspan class=\"frogsr-spec-key\"\u003eProduct Line\u003c\/span\u003e\u003cspan class=\"frogsr-spec-val\"\u003eFROG Serene (formerly Spa Frog)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-spec-row\"\u003e\n\u003cspan class=\"frogsr-spec-key\"\u003eMPN\u003c\/span\u003e\u003cspan class=\"frogsr-spec-val\"\u003e01-14-3856\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-spec-row\"\u003e\n\u003cspan class=\"frogsr-spec-key\"\u003ePST SKU\u003c\/span\u003e\u003cspan class=\"frogsr-spec-val\"\u003ePST-01143856\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-spec-row\"\u003e\n\u003cspan class=\"frogsr-spec-key\"\u003eType\u003c\/span\u003e\u003cspan class=\"frogsr-spec-val\"\u003eSpa Sanitizer Cartridge Kit\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-spec-row\"\u003e\n\u003cspan class=\"frogsr-spec-key\"\u003eKit Contents\u003c\/span\u003e\u003cspan class=\"frogsr-spec-val\"\u003e1 Mineral Cartridge, 3 Bromine Cartridges\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-spec-row\"\u003e\n\u003cspan class=\"frogsr-spec-key\"\u003eMineral Cartridge Color\u003c\/span\u003e\u003cspan class=\"frogsr-spec-val\"\u003eBlue\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-spec-row\"\u003e\n\u003cspan class=\"frogsr-spec-key\"\u003eBromine Cartridge Color\u003c\/span\u003e\u003cspan class=\"frogsr-spec-val\"\u003eYellow\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-spec-row\"\u003e\n\u003cspan class=\"frogsr-spec-key\"\u003eSanitizer\u003c\/span\u003e\u003cspan class=\"frogsr-spec-val\"\u003eBromine plus FROG Minerals\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-spec-row\"\u003e\n\u003cspan class=\"frogsr-spec-key\"\u003eBromine Reduction\u003c\/span\u003e\u003cspan class=\"frogsr-spec-val\"\u003eUp to 50% vs bromine alone\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-spec-row\"\u003e\n\u003cspan class=\"frogsr-spec-key\"\u003eMineral Cartridge Life\u003c\/span\u003e\u003cspan class=\"frogsr-spec-val\"\u003eAbout 4 months or on drain and refill\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-spec-row\"\u003e\n\u003cspan class=\"frogsr-spec-key\"\u003eBromine Cartridge Life\u003c\/span\u003e\u003cspan class=\"frogsr-spec-val\"\u003e2 to 4 weeks each\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-spec-row\"\u003e\n\u003cspan class=\"frogsr-spec-key\"\u003eSpa Size Range\u003c\/span\u003e\u003cspan class=\"frogsr-spec-val\"\u003e150 to 600 gallons\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-spec-row\"\u003e\n\u003cspan class=\"frogsr-spec-key\"\u003eCompatible Systems\u003c\/span\u003e\u003cspan class=\"frogsr-spec-val\"\u003eFROG Serene Floating and In-Line holders\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"frogsr-spec-row\"\u003e\n\u003cspan class=\"frogsr-spec-key\"\u003eAdjustable Output\u003c\/span\u003e\u003cspan class=\"frogsr-spec-val\"\u003eYes, dial on bromine cartridge\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \n  \u003csection class=\"frogsr-section\"\u003e\n    \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n    \n    \u003cdiv class=\"frogsr-faq-card\"\u003e\n      \u003ch4\u003eWhat exactly comes in the 01-14-3856 kit?\u003c\/h4\u003e\n      \u003cp\u003eOne blue \u003cstrong\u003emineral cartridge\u003c\/strong\u003e and three yellow \u003cstrong\u003ebromine cartridges\u003c\/strong\u003e. The mineral cartridge runs about four months, and the three bromine cartridges cover that same four-month window, roughly one every two to four weeks depending on how hard you use the tub.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n    \u003cdiv class=\"frogsr-faq-card\"\u003e\n      \u003ch4\u003eDoes this fit both the floating and in-line FROG Serene systems?\u003c\/h4\u003e\n      \u003cp\u003eYes. These are the standard FROG Serene cartridges, so they snap into the \u003cstrong\u003efloating cap\u003c\/strong\u003e and also drop into the \u003cstrong\u003ein-line cartridge basket\u003c\/strong\u003e. If your holder says FROG Serene or Spa Frog, this kit is the right refill.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n    \u003cdiv class=\"frogsr-faq-card\"\u003e\n      \u003ch4\u003eWhat size hot tub does this treat?\u003c\/h4\u003e\n      \u003cp\u003eThe FROG Serene system is rated for spas from \u003cstrong\u003e150 to 600 gallons\u003c\/strong\u003e, which covers most residential hot tubs. Set the bromine cartridge dial higher for larger tubs or heavy bather loads and lower for small, lightly used spas.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n    \u003cdiv class=\"frogsr-faq-card\"\u003e\n      \u003ch4\u003eHow is this different from just using bromine tablets?\u003c\/h4\u003e\n      \u003cp\u003eThe blue mineral cartridge adds FROG minerals that team up with bromine to kill bacteria, letting you run \u003cstrong\u003eup to 50% less bromine\u003c\/strong\u003e. The result is softer, clearer water with less chemical smell, and you replace a prefilled cartridge instead of scooping tablets.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n    \u003cdiv class=\"frogsr-faq-card\"\u003e\n      \u003ch4\u003eCan I set this up myself?\u003c\/h4\u003e\n      \u003cp\u003eYes, it takes about a minute. With the spa filled and the pump circulating, twist open your FROG Serene holder, snap in the blue mineral cartridge and one yellow bromine cartridge, set the bromine dial, and close it up. Keep the two spare bromine cartridges sealed until you need them.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n  \u003c\/section\u003e\n  \n\n  \u003csection class=\"frogsr-cta\"\u003e\n    \u003ch2\u003eOrder the FROG Serene Cartridge Kit From PST\u003c\/h2\u003e\n    \u003cp\u003eAuthorized King Technology dealer with the genuine 01-14-3856 refill kit in stock and ready to ship.\u003c\/p\u003e\n    \u003cdiv class=\"frogsr-perks\"\u003e\n      \u003cspan class=\"frogsr-perk\"\u003eFree Shipping\u003c\/span\u003e\u003cspan class=\"frogsr-perk\"\u003e30-Day Returns\u003c\/span\u003e\u003cspan class=\"frogsr-perk\"\u003eGenuine King Technology\u003c\/span\u003e\u003cspan class=\"frogsr-perk\"\u003eAuthorized King Technology Dealer\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n\u003c\/div\u003e\n","brand":"King Technology","offers":[{"title":"Default Title","offer_id":44126697619521,"sku":"PST-01143856","price":70.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/PST-01143856.jpg?v=1783492429","url":"https:\/\/www.pstpoolsupplies.com\/products\/frog-serene-cartridge-kit","provider":"PST Pool Supplies","version":"1.0","type":"link"}