{"title":"Main Access","description":null,"products":[{"product_id":"main-access-4ch4002r-power-ionizer-replacement-electrode-chamber","title":"Main Access 4CH4002R Power Ionizer Replacement Electrode Chamber","description":"\n\u003cstyle\u003e\n  .ma4ch4002-wrap, .ma4ch4002-wrap * { box-sizing: border-box; }\n  .ma4ch4002-wrap {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #1a1a1a;\n    line-height: 1.55;\n  }\n\n  \/* Header *\/\n  .ma4ch4002-header {\n    border-left: 5px solid #00a8e0;\n    padding: 4px 0 4px 16px;\n    margin-bottom: 20px;\n  }\n  .ma4ch4002-header h2 {\n    margin: 0;\n    color: #003a70;\n    font-size: 1.55em;\n    font-weight: 700;\n    letter-spacing: -0.01em;\n  }\n  .ma4ch4002-subtitle {\n    margin: 4px 0 0;\n    color: #666;\n    font-size: 0.95em;\n  }\n\n  \/* Intro *\/\n  .ma4ch4002-intro {\n    margin: 0 0 24px;\n    color: #333;\n    font-size: 0.98em;\n  }\n\n  \/* Section heading *\/\n  .ma4ch4002-section { margin-bottom: 28px; }\n  .ma4ch4002-section-heading {\n    background: #003a70;\n    color: #fff;\n    font-size: 0.85em;\n    font-weight: 700;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n    padding: 6px 12px;\n    margin: 0 0 0;\n    border-radius: 4px 4px 0 0;\n  }\n\n  \/* Spec table *\/\n  .ma4ch4002-spec-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.93em;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    overflow: hidden;\n  }\n  .ma4ch4002-spec-table tr { border-bottom: 1px solid #eef1f6; }\n  .ma4ch4002-spec-table tr:nth-child(even) { background: #fafbfd; }\n  .ma4ch4002-spec-table tr:last-child { border-bottom: none; }\n  .ma4ch4002-spec-table th,\n  .ma4ch4002-spec-table td {\n    text-align: left;\n    padding: 8px 14px;\n    vertical-align: top;\n  }\n  .ma4ch4002-spec-table th {\n    font-weight: 600;\n    color: #4a4a4a;\n    width: 38%;\n  }\n  .ma4ch4002-spec-table td {\n    color: #1a1a1a;\n    font-family: ui-monospace, \"SF Mono\", Menlo, Consolas, monospace;\n    font-size: 0.92em;\n  }\n\n  \/* Compatibility list *\/\n  .ma4ch4002-compat-list {\n    margin: 0;\n    padding: 14px 16px 14px 32px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    list-style: square;\n    color: #1a1a1a;\n    font-size: 0.95em;\n  }\n  .ma4ch4002-compat-list li { padding: 2px 0; }\n  .ma4ch4002-compat-list li::marker { color: #00a8e0; }\n\n  \/* Cross-reference chip list *\/\n  .ma4ch4002-chips {\n    padding: 14px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    display: flex;\n    flex-wrap: wrap;\n    gap: 8px;\n  }\n  .ma4ch4002-chip {\n    background: #f0f3f8;\n    border: 1px solid #d8dde6;\n    color: #003a70;\n    padding: 5px 12px;\n    border-radius: 4px;\n    font-family: ui-monospace, \"SF Mono\", Menlo, Consolas, monospace;\n    font-size: 0.88em;\n    font-weight: 600;\n  }\n\n  \/* Notes \/ FAQ *\/\n  .ma4ch4002-notes {\n    padding: 14px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n  }\n  .ma4ch4002-note-item { padding: 8px 0; border-bottom: 1px solid #eef1f6; }\n  .ma4ch4002-note-item:last-child { border-bottom: none; }\n  .ma4ch4002-note-q { font-weight: 600; color: #003a70; margin: 0 0 3px; font-size: 0.95em; }\n  .ma4ch4002-note-a { margin: 0; color: #333; font-size: 0.93em; }\n\n  \/* Footer *\/\n  .ma4ch4002-footer {\n    border-top: 1px solid #d8dde6;\n    padding-top: 12px;\n    margin-top: 24px;\n    text-align: center;\n    color: #555;\n    font-size: 0.88em;\n  }\n  .ma4ch4002-footer .ma4ch4002-dot {\n    color: #00a8e0;\n    margin: 0 8px;\n    font-weight: 700;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"ma4ch4002-wrap\"\u003e\n\n  \u003cheader class=\"ma4ch4002-header\"\u003e\n    \u003ch2\u003eMain Access 4CH4002R Power Ionizer Replacement Electrode Chamber\u003c\/h2\u003e\n    \u003cp class=\"ma4ch4002-subtitle\"\u003eCopper and silver ion chamber for the Main Access Power Ionizer\u003c\/p\u003e\n  \u003c\/header\u003e\n\n  \u003cp class=\"ma4ch4002-intro\"\u003eMain Access \u003cstrong\u003e4CH4002R\u003c\/strong\u003e is the replacement electrode chamber for the Main Access Power Ionizer (Power Ion) system, for units built \u003cstrong\u003e1997 and later\u003c\/strong\u003e. Its copper and silver electrodes release mineral ions into your pool water, and it plumbs into the return line after the filter in place of your spent chamber.\u003c\/p\u003e\n\n  \n    \u003csection class=\"ma4ch4002-section\"\u003e\n      \u003cdiv class=\"ma4ch4002-section-heading\"\u003eSpecifications\u003c\/div\u003e\n      \u003ctable class=\"ma4ch4002-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eMain Access\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003e4CH4002R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAlso Listed As\u003c\/th\u003e\n\u003ctd\u003e4CH4002-R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eReplacement ion electrode chamber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSystem\u003c\/th\u003e\n\u003ctd\u003eMain Access Power Ionizer (Power Ion) hybrid pool water treatment system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSystem Model\u003c\/th\u003e\n\u003ctd\u003e444301\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003ePower Ionizer units built 1997 and later\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElectrodes\u003c\/th\u003e\n\u003ctd\u003eCopper and silver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSystem Pool Capacity\u003c\/th\u003e\n\u003ctd\u003eUp to 40,000 gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInstall Location\u003c\/th\u003e\n\u003ctd\u003ePool return line, after the filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eService Life\u003c\/th\u003e\n\u003ctd\u003e1 to 2 swim seasons, depending on climate and bather load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReplacement Signal\u003c\/th\u003e\n\u003ctd\u003eChamber indicator light on the Power Ionizer control unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended pH\u003c\/th\u003e\n\u003ctd\u003e7.2 to 7.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Calcium Hardness\u003c\/th\u003e\n\u003ctd\u003e180 to 250 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e1 year manufacturer warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eEach\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n  \n\n  \n  \u003csection class=\"ma4ch4002-section\"\u003e\n    \u003cdiv class=\"ma4ch4002-section-heading\"\u003eCompatibility\u003c\/div\u003e\n    \u003cul class=\"ma4ch4002-compat-list\"\u003e\n      \u003cli\u003eMain Access Power Ionizer system, model 444301\u003c\/li\u003e\n\u003cli\u003eMain Access Power Ion units built 1997 and later\u003c\/li\u003e\n\u003cli\u003eIn-ground and above-ground pool installations of the Power Ionizer\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n  \n\n  \n  \u003csection class=\"ma4ch4002-section\"\u003e\n    \u003cdiv class=\"ma4ch4002-section-heading\"\u003eCross-References\u003c\/div\u003e\n    \u003cdiv class=\"ma4ch4002-chips\"\u003e\n      \u003cspan class=\"ma4ch4002-chip\"\u003e4CH4002R\u003c\/span\u003e\u003cspan class=\"ma4ch4002-chip\"\u003e4CH4002-R\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \n\n  \n  \u003csection class=\"ma4ch4002-section\"\u003e\n    \u003cdiv class=\"ma4ch4002-section-heading\"\u003eNotes\u003c\/div\u003e\n    \u003cdiv class=\"ma4ch4002-notes\"\u003e\n      \n      \u003cdiv class=\"ma4ch4002-note-item\"\u003e\n        \u003cp class=\"ma4ch4002-note-q\"\u003eHow often should I replace the chamber?\u003c\/p\u003e\n        \u003cp class=\"ma4ch4002-note-a\"\u003ePlan on a new chamber every \u003cstrong\u003e1 to 2 swim seasons\u003c\/strong\u003e, depending on your climate and bather load. Replace it when the \u003cstrong\u003eChamber\u003c\/strong\u003e light on the control unit comes on, which means the electrodes are no longer producing ions.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \n      \u003cdiv class=\"ma4ch4002-note-item\"\u003e\n        \u003cp class=\"ma4ch4002-note-q\"\u003eHow do I swap the chamber?\u003c\/p\u003e\n        \u003cp class=\"ma4ch4002-note-a\"\u003eUnplug the Power Ionizer and shut off the pump, then disconnect the old chamber from the return line and the control unit and install the new one in the same position. Quick disconnect unions on both ends of the chamber make future chamber changes faster.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \n      \u003cdiv class=\"ma4ch4002-note-item\"\u003e\n        \u003cp class=\"ma4ch4002-note-q\"\u003eDo I still need chlorine with the Power Ionizer?\u003c\/p\u003e\n        \u003cp class=\"ma4ch4002-note-a\"\u003eYes. The ionizer lowers the amount of chlorine your pool needs but does not eliminate it. Keep a low chlorine residual, shock weekly, and test copper levels along with pH and alkalinity.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \n\n  \u003cfooter class=\"ma4ch4002-footer\"\u003e\n    Free Shipping\u003cspan class=\"ma4ch4002-dot\"\u003e•\u003c\/span\u003e30-Day Returns\u003cspan class=\"ma4ch4002-dot\"\u003e•\u003c\/span\u003eWarranty Backed\u003cspan class=\"ma4ch4002-dot\"\u003e•\u003c\/span\u003eAuthorized Main Access Dealer\n  \u003c\/footer\u003e\n\n\u003c\/div\u003e\n","brand":"Main Access","offers":[{"title":"Default Title","offer_id":50612204044353,"sku":"PST-4CH4002R","price":90.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/2026-10-04at04.20.23PM_5f3f9772-642a-4081-8c3e-755bcff5167f.png?v=1791153969"}],"url":"https:\/\/www.pstpoolsupplies.com\/collections\/main-access.oembed","provider":"PST Pool Supplies","version":"1.0","type":"link"}