{"product_id":"zotee-spa-filter-set-sundance-microclean-ultra-replacement-6541-397-outer-inner-19-pleated-high-flow","title":"ZOTEE Spa Filter Set — Sundance MicroClean Ultra Replacement 6541-397 (Outer + Inner), 19\" Pleated High-Flow","description":"\u003cstrong\u003eZOTEE Pool Spa Filter Set replaces Sundance MicroClean Ultra 6541-397 (outer 6473-165 + inner 6473-164) to restore high flow and clean water in compatible hot tubs and spas.\u003c\/strong\u003e\n\n\u003cp\u003eThis ZOTEE replacement set includes both the outer and inner pleated cartridges designed to match the size and fittings of the Sundance MicroClean Ultra series. Built with durable pleated fabric and a high-flow core, the pair restores filtration performance for spas that accept the 8-7\/16\" outer diameter, 19\" length cartridges with a 1-1\/2\" male slip top and 2-1\/2\" open beveled bottom.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these filters fit my Sundance or Hot Springs spa?\u003c\/h3\u003e\n\u003cp\u003eThese filters are engineered to match the form and connection points of the original Sundance MicroClean Ultra set 6541-397 (inner 6473-164 and outer 6473-165). Verify the dimensions and fitting type on your existing cartridge before purchase to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOuter diameter: 8-7\/16\"\u003c\/li\u003e\n  \u003cli\u003eLength: 19\"\u003c\/li\u003e\n  \u003cli\u003eTop fitting: 1-1\/2\" male slip\u003c\/li\u003e\n  \u003cli\u003eBottom: 2-1\/2\" open with beveled edge\u003c\/li\u003e\n  \u003cli\u003eCompatible part numbers: 6541-397, AK-6541397, UFC-397\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat filtration performance should I expect?\u003c\/h3\u003e\n\u003cp\u003eThe pleated design increases surface area so the cartridges trap more debris while maintaining higher flow rates through the core. That reduces strain on your circulation pump and helps keep water clearer between cleanings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDurable pleated fabric resists tearing when loaded\u003c\/li\u003e\n  \u003cli\u003eHigh-flow inner core for improved circulation\u003c\/li\u003e\n  \u003cli\u003eGreater filter area extends service intervals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I clean and care for these cartridges?\u003c\/h3\u003e\n\u003cp\u003eCleaning is simple: rinse the pleats with a gentle stream of water to dislodge trapped debris and extend the cartridge life. Avoid pressure washers and abrasive brushes which can damage the pleated fabric and shorten service life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRinse during routine water top-offs or weekly maintenance\u003c\/li\u003e\n  \u003cli\u003eDo not use high-pressure hoses or abrasive scrubbers\u003c\/li\u003e\n  \u003cli\u003eReplace cartridges when pleats are frayed or flow drops substantially\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this set reduce pump wear or energy use?\u003c\/h3\u003e\n\u003cp\u003eBy restoring higher flow with a properly sized high-flow core, the replacement set can help the system run with less resistance. Lower strain on the pump may improve operational efficiency compared with a fouled or undersized filter.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow design minimizes backpressure on the pump\u003c\/li\u003e\n  \u003cli\u003eCleaner filters preserve circulation efficiency\u003c\/li\u003e\n  \u003cli\u003eRegular cleaning maintains performance and reduces runtime stress\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: owners of Sundance MicroClean Ultra-compatible hot tubs and spas (including several Hot Springs models) who need a direct-fit replacement for the 6541-397 cartridge set. Choose this ZOTEE set if you want a durable, easy-to-clean pair of inner and outer pleated filters sized 8-7\/16\" x 19\" with standard slip fittings that restore reliable filtration performance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these filters compatible with Sundance 6541-397?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This ZOTEE set replaces Sundance 6541-397 (inner 6473-164 and outer 6473-165) with matching dimensions and fittings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I clean these cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rinse with a gentle stream of water; avoid high-pressure hoses and abrasive brushes to protect the pleats.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ZOTEE","offers":[{"title":"Default Title","offer_id":56840293253460,"sku":"B0C2PMD4XS","price":136.26,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/zotee-filter-set-front-packaging.jpg?v=1787070211","url":"https:\/\/gardenluxe.co.uk\/products\/zotee-spa-filter-set-sundance-microclean-ultra-replacement-6541-397-outer-inner-19-pleated-high-flow","provider":"Gardenluxe Uk","version":"1.0","type":"link"}