{"product_id":"apc-apcc7645m-cartridge-4-15-16-x-9-1-4-35-sq-ft","title":"APC APCC7645M 35 Sq Ft Microban Spa Filter Cartridge","description":"\n\u003cstyle\u003e\n  .apc7645m-wrap, .apc7645m-wrap * { box-sizing: border-box; }\n  .apc7645m-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  .apc7645m-hero {\n    background: linear-gradient(135deg, #1a4d2e 0%, #8bc34a 100%);\n    color: #fff;\n    padding: 36px 32px;\n    border-radius: 14px;\n    text-align: center;\n    margin-bottom: 28px;\n  }\n  .apc7645m-hero h1 { font-size: 2em; margin: 0 0 8px; font-weight: 800; letter-spacing: -0.02em; }\n  .apc7645m-tagline { font-size: 1.1em; opacity: 0.95; margin: 0 0 18px; }\n  .apc7645m-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }\n  .apc7645m-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  .apc7645m-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  .apc7645m-stats {\n    background: linear-gradient(135deg, #0c2c1a 0%, #1a4d2e 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  .apc7645m-stat { text-align: center; }\n  .apc7645m-stat-value { font-size: 1.5em; font-weight: 800; color: #b6dd7e; }\n  .apc7645m-stat-label { font-size: 0.78em; opacity: 0.85; text-transform: uppercase; letter-spacing: 0.05em; margin-top: 4px; }\n\n  \/* Section headings *\/\n  .apc7645m-section { margin-bottom: 36px; }\n  .apc7645m-section \u003e h2 { font-size: 1.5em; margin: 0 0 18px; text-align: center; color: #1a4d2e; }\n\n  \/* Feature card grid *\/\n  .apc7645m-feature-grid {\n    display: grid;\n    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));\n    gap: 16px;\n  }\n  .apc7645m-feature-card {\n    background: #fff;\n    border: 1px solid #e1e6ed;\n    border-radius: 12px;\n    padding: 22px;\n    transition: transform 0.2s, box-shadow 0.2s;\n  }\n  .apc7645m-feature-card:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(26,77,46,0.14); }\n  .apc7645m-emoji { font-size: 1.8em; }\n  .apc7645m-feature-card h5 { margin: 10px 0 6px; font-size: 1.05em; color: #1a1a1a; }\n  .apc7645m-feature-card p { margin: 0; color: #444; font-size: 0.95em; }\n\n  \/* Warning *\/\n  .apc7645m-warning {\n    background: #fff7e0;\n    border-left: 5px solid #f5a623;\n    border-radius: 10px;\n    padding: 18px 22px;\n    margin-bottom: 36px;\n  }\n  .apc7645m-warning h4 { margin: 0 0 6px; color: #8a5b00; font-size: 1.05em; }\n  .apc7645m-warning p { margin: 0; color: #5a3d00; font-size: 0.95em; }\n\n  \/* Spec grid *\/\n  .apc7645m-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  .apc7645m-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  .apc7645m-spec-key { font-weight: 600; color: #1a4d2e; }\n  .apc7645m-spec-val { color: #1a1a1a; text-align: right; }\n\n  \/* FAQ *\/\n  .apc7645m-faq-card {\n    background: #fff;\n    border: 1px solid #e1e6ed;\n    border-radius: 10px;\n    padding: 18px 22px;\n    margin-bottom: 12px;\n  }\n  .apc7645m-faq-card h4 { margin: 0 0 6px; color: #1a4d2e; font-size: 1.02em; }\n  .apc7645m-faq-card p { margin: 0; color: #333; font-size: 0.95em; }\n\n  \/* CTA *\/\n  .apc7645m-cta {\n    background: linear-gradient(135deg, #1a4d2e 0%, #8bc34a 100%);\n    color: #fff;\n    border-radius: 14px;\n    padding: 32px 28px;\n    text-align: center;\n  }\n  .apc7645m-cta h2 { font-size: 1.6em; margin: 0 0 8px; }\n  .apc7645m-cta p { margin: 0 0 18px; font-size: 1em; opacity: 0.95; }\n  .apc7645m-perks { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }\n  .apc7645m-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    .apc7645m-hero h1 { font-size: 1.5em; }\n    .apc7645m-stats { grid-template-columns: repeat(2, 1fr); }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"apc7645m-wrap\"\u003e\n\n  \u003csection class=\"apc7645m-hero\"\u003e\n    \u003ch1\u003eAPC APCC7645M 35 Sq Ft Microban Spa Filter Cartridge\u003c\/h1\u003e\n    \u003cp class=\"apc7645m-tagline\"\u003eScrew-in 35 sq ft media with built-in Microban.\u003c\/p\u003e\n    \n    \u003cdiv class=\"apc7645m-badges\"\u003e\n      \u003cspan class=\"apc7645m-badge\"\u003eMicroban Antimicrobial\u003c\/span\u003e\u003cspan class=\"apc7645m-badge\"\u003e35 Sq Ft\u003c\/span\u003e\u003cspan class=\"apc7645m-badge\"\u003eFree Shipping\u003c\/span\u003e\u003cspan class=\"apc7645m-badge\"\u003eAuthorized APC Dealer\u003c\/span\u003e\n    \u003c\/div\u003e\n    \n  \u003c\/section\u003e\n\n  \u003cp class=\"apc7645m-intro\"\u003eThe \u003cstrong\u003eAPC APCC7645M\u003c\/strong\u003e (MPN APCC7645M, SKU PST-APCC7645M) is a 35 square foot screw-in spa filter cartridge with \u003cstrong\u003eMicroban\u003c\/strong\u003e antimicrobial media that drops straight into Waterway Teleweir-style front-access skimmers and dozens of bottom-load spa housings. It crosses to Unicel \u003cstrong\u003e4CH-935\u003c\/strong\u003e, Pleatco \u003cstrong\u003ePWW35L-M\u003c\/strong\u003e, and Filbur \u003cstrong\u003eFC-0170M\u003c\/strong\u003e, so if your old element carries any of those numbers, this one fits. The blue Microban fabric fights the odor-causing bacteria that build up on a cartridge between cleanings, which means fewer rinses and cleaner water in your tub.\u003c\/p\u003e\n\n  \u003csection class=\"apc7645m-stats\"\u003e\n    \u003cdiv class=\"apc7645m-stat\"\u003e\n\u003cdiv class=\"apc7645m-stat-value\"\u003e35\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-stat-label\"\u003eSq Ft Media\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-stat\"\u003e\n\u003cdiv class=\"apc7645m-stat-value\"\u003e219\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-stat-label\"\u003ePleats\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-stat\"\u003e\n\u003cdiv class=\"apc7645m-stat-value\"\u003e~20\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-stat-label\"\u003eMicron Rating\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-stat\"\u003e\n\u003cdiv class=\"apc7645m-stat-value\"\u003e9-1\/4\"\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-stat-label\"\u003eLength\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-stat\"\u003e\n\u003cdiv class=\"apc7645m-stat-value\"\u003eMicroban\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-stat-label\"\u003eAntimicrobial\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"apc7645m-section\"\u003e\n    \u003ch2\u003eWhy PST Customers Pick This\u003c\/h2\u003e\n    \u003cdiv class=\"apc7645m-feature-grid\"\u003e\n      \u003cdiv class=\"apc7645m-feature-card\"\u003e\n\u003cdiv class=\"apc7645m-emoji\"\u003e🧬\u003c\/div\u003e\n\u003ch5\u003eBuilt-In Microban\u003c\/h5\u003e\n\u003cp\u003eThe blue media is treated with \u003cstrong\u003eMicroban\u003c\/strong\u003e antimicrobial protection that inhibits smelly bacteria growth on the filter fabric, so your tub stays fresher between cleanings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-feature-card\"\u003e\n\u003cdiv class=\"apc7645m-emoji\"\u003e🎯\u003c\/div\u003e\n\u003ch5\u003eDirect Cross-Reference Fit\u003c\/h5\u003e\n\u003cp\u003eReplaces Unicel \u003cstrong\u003e4CH-935 \/ 4CH-935RA\u003c\/strong\u003e, Pleatco \u003cstrong\u003ePWW35L-M\u003c\/strong\u003e, Filbur \u003cstrong\u003eFC-0170M\u003c\/strong\u003e, Waterway \u003cstrong\u003e817-4035\u003c\/strong\u003e, and Darlly \u003cstrong\u003e40355\u003c\/strong\u003e. Match the number on your old cartridge and you are done.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-feature-card\"\u003e\n\u003cdiv class=\"apc7645m-emoji\"\u003e🔩\u003c\/div\u003e\n\u003ch5\u003eScrew-In Bottom\u003c\/h5\u003e\n\u003cp\u003eThe \u003cstrong\u003e2\" female SAE\u003c\/strong\u003e threaded base twists securely into Waterway front-access skim filters and other bottom-load housings for a leak-free seal, no clamps or O-rings to chase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-feature-card\"\u003e\n\u003cdiv class=\"apc7645m-emoji\"\u003e💧\u003c\/div\u003e\n\u003ch5\u003e35 Sq Ft Of Surface\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003e219 pleats\u003c\/strong\u003e of 3 oz Reemay polyester media trap debris down to roughly \u003cstrong\u003e20 microns\u003c\/strong\u003e, giving you more dirt-holding capacity and longer runs between cleanings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-feature-card\"\u003e\n\u003cdiv class=\"apc7645m-emoji\"\u003e🌊\u003c\/div\u003e\n\u003ch5\u003eFits Popular Spa Brands\u003c\/h5\u003e\n\u003cp\u003eUsed in Waterway Teleweir 35, Master Spas Twilight and Therapool, Nordic Hot Tubs, Four Winds, Clarity, and Rising Dragon tubs that take a handle-top 35 sq ft element.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-feature-card\"\u003e\n\u003cdiv class=\"apc7645m-emoji\"\u003e🧰\u003c\/div\u003e\n\u003ch5\u003eTool-Free Swap\u003c\/h5\u003e\n\u003cp\u003eUnthread the old cartridge, rinse the housing, and thread this one in. The \u003cstrong\u003ev-groove handle\u003c\/strong\u003e top gives you a solid grip for removal even when the media is wet.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \n\n  \u003csection class=\"apc7645m-section\"\u003e\n    \u003ch2\u003eSpecifications\u003c\/h2\u003e\n    \u003cdiv class=\"apc7645m-spec-grid\"\u003e\n      \u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eManufacturer\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003eAPC\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eModel \/ MPN\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003eAPCC7645M\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eSKU\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003ePST-APCC7645M\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eFilter Area\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003e35 sq ft\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003ePleat Count\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003e219 pleats\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eMicron Rating\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003e~20 microns (average)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eMedia Material\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003e3 oz Reemay polyester\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eAntimicrobial\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003eMicroban treated (blue media)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eOuter Diameter\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003e4-15\/16 in\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eLength\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003e9-1\/4 in\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eTop\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003eHandle (v-groove)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eBottom\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003e2 in female SAE thread (screw-in)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eUnicel Cross\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003e4CH-935 \/ 4CH-935RA\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003ePleatco Cross\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003ePWW35L-M\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eFilbur Cross\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003eFC-0170M\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eWaterway OEM\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003e817-4035\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eDarlly Cross\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003e40355M\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apc7645m-spec-row\"\u003e\n\u003cspan class=\"apc7645m-spec-key\"\u003eUse\u003c\/span\u003e\u003cspan class=\"apc7645m-spec-val\"\u003eSpa \/ hot tub cartridge filtration\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \n  \u003csection class=\"apc7645m-section\"\u003e\n    \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n    \n    \u003cdiv class=\"apc7645m-faq-card\"\u003e\n      \u003ch4\u003eWhat does the M in APCC7645M mean?\u003c\/h4\u003e\n      \u003cp\u003eThe \u003cstrong\u003eM\u003c\/strong\u003e denotes the \u003cstrong\u003eMicroban\u003c\/strong\u003e antimicrobial version. The media is treated with Microban protection (the fabric is blue) to inhibit odor-causing bacteria on the cartridge. The non-Microban equivalent is the standard 4CH-935 \/ FC-0170 element; this one adds the antimicrobial treatment.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n    \u003cdiv class=\"apc7645m-faq-card\"\u003e\n      \u003ch4\u003eWill this fit my spa?\u003c\/h4\u003e\n      \u003cp\u003eIf your current cartridge measures about \u003cstrong\u003e4-15\/16\" wide by 9-1\/4\" long\u003c\/strong\u003e with a handle on top and a screw-in threaded bottom, this is a direct fit. It crosses to Unicel \u003cstrong\u003e4CH-935\u003c\/strong\u003e, Pleatco \u003cstrong\u003ePWW35L\u003c\/strong\u003e, and Filbur \u003cstrong\u003eFC-0170\u003c\/strong\u003e, and is used in Waterway Teleweir 35, Master Spas, Nordic, Four Winds, Clarity, and Rising Dragon tubs. Match the old number or the dimensions to confirm.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n    \u003cdiv class=\"apc7645m-faq-card\"\u003e\n      \u003ch4\u003eHow is this different from the APCC7645 without Microban?\u003c\/h4\u003e\n      \u003cp\u003eSame dimensions, same 35 sq ft, same screw-in fit. The \u003cstrong\u003eAPCC7645M\u003c\/strong\u003e uses Microban-treated blue media that resists bacterial buildup on the fabric, while the standard version uses untreated white media. Both filter to the same micron range, so choose Microban if you want extra odor and biofilm resistance between cleanings.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n    \u003cdiv class=\"apc7645m-faq-card\"\u003e\n      \u003ch4\u003eHow often should I replace it?\u003c\/h4\u003e\n      \u003cp\u003ePlan on a new cartridge every \u003cstrong\u003e12 to 24 months\u003c\/strong\u003e depending on use, and rinse it every few weeks. Replace sooner if you see torn or matted pleats, a collapsed center core, low flow, or a high pressure reading that a cleaning will not fix. Microban slows odor buildup but does not extend the mechanical life of the media.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n    \u003cdiv class=\"apc7645m-faq-card\"\u003e\n      \u003ch4\u003eCan I install this myself?\u003c\/h4\u003e\n      \u003cp\u003eYes. Turn off the spa, unthread the old cartridge from the housing, rinse out the canister, and screw this one in hand-tight using the \u003cstrong\u003ehandle\u003c\/strong\u003e for grip. No tools, no plumbing, and no clamps. Spin the pump back on and check for a clean seal at the threaded base.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n  \u003c\/section\u003e\n  \n\n  \u003csection class=\"apc7645m-cta\"\u003e\n    \u003ch2\u003eOrder the APCC7645M From PST\u003c\/h2\u003e\n    \u003cp\u003eAuthorized APC dealer. Backed by the PST Pool Supplies service team and fast, free shipping.\u003c\/p\u003e\n    \u003cdiv class=\"apc7645m-perks\"\u003e\n      \u003cspan class=\"apc7645m-perk\"\u003eFree Shipping\u003c\/span\u003e\u003cspan class=\"apc7645m-perk\"\u003e30-Day Returns\u003c\/span\u003e\u003cspan class=\"apc7645m-perk\"\u003eWarranty Backed\u003c\/span\u003e\u003cspan class=\"apc7645m-perk\"\u003eAuthorized APC Dealer\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n\u003c\/div\u003e\n","brand":"APC","offers":[{"title":"Default Title","offer_id":44083961004097,"sku":"PST-APCC7645M","price":48.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/APCC7645M_COMPOSITE.jpg?v=1782366084","url":"https:\/\/www.pstpoolsupplies.com\/products\/apc-apcc7645m-cartridge-4-15-16-x-9-1-4-35-sq-ft","provider":"PST Pool Supplies","version":"1.0","type":"link"}