{"product_id":"filter-kit-fk-101-for-vertex-coolers-copy","title":"Filter Kit FK-101 for PT-4.0\/5 5-Stage RO System","description":"\u003ch2\u003eFilter Kit FK-101 for PT-4.0\/5 5-Stage RO System\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eFK-101 Filter Kit\u003c\/strong\u003e is the complete annual replacement filter set designed specifically for the \u003cstrong\u003eVertex PT-4.0\/5 5-Stage Reverse Osmosis System\u003c\/strong\u003e. This kit replaces all pre- and post-filters (RO membrane not included) to maintain optimal water quality and system performance.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\n\u003cp\u003eThe FK-101 is engineered for the \u003cstrong\u003ePT-4.0\/5 36 GPD 5-stage residential RO system\u003c\/strong\u003e that uses standard 2.5” × 10” vertical filter housings.\u003c\/p\u003e\n\n\u003cp\u003eThis kit restores filtration performance, improves taste and odor reduction, and helps protect your RO membrane from premature fouling.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This kit does not include the RO membrane. For membrane replacement, see model \u003cstrong\u003eMA-4202 (36 GPD)\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eFilter Stages\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 1:\u003c\/strong\u003e 5-micron Sediment Filter (SF-4007) – Removes dirt, rust, and suspended solids.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 2:\u003c\/strong\u003e Carbon Block Filter (CF-4142) – Reduces chlorine, taste, and odor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 3:\u003c\/strong\u003e Carbon Block Filter (CF-4142) – Additional chlorine and chemical reduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 5:\u003c\/strong\u003e Inline GAC Post Filter (IF-4103) – Final taste polishing before dispensing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eRO membrane (MA-4202) sold separately.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eStrict Compatibility\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatible ONLY with:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eVertex PT-4.0\/5 5-Stage RO System\u003c\/li\u003e\n\u003cli\u003eOther Vertex 5-stage residential RO systems using 2.5” × 10” standard housings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eNot compatible with:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003ePT-4.0 (4-stage) systems — use FK-100 instead\u003c\/li\u003e\n\u003cli\u003eIsoTwist models\u003c\/li\u003e\n\u003cli\u003eGreenMachine systems\u003c\/li\u003e\n\u003cli\u003eEasyPur twist-on systems\u003c\/li\u003e\n\u003cli\u003eAny Vertex PWC water cooler models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eIf you are unsure which system you own, please contact us with your model number before ordering.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eSystem Type: 5-stage residential reverse osmosis\u003c\/li\u003e\n\u003cli\u003eFilter Size: 2.5” × 10” standard housings\u003c\/li\u003e\n\u003cli\u003eMembrane: Not included (36 GPD MA-4202)\u003c\/li\u003e\n\u003cli\u003eRecommended Replacement Cycle: Every 6–12 months\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eIncludes\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e1 × Sediment Filter (SF-4007)\u003c\/li\u003e\n\u003cli\u003e2 × Carbon Block Filters (CF-4142)\u003c\/li\u003e\n\u003cli\u003e1 × Inline GAC Post Filter (IF-4103)\u003c\/li\u003e\n\u003cli\u003eReplacement O-rings\u003c\/li\u003e\n\u003cli\u003eFilter housing removal wrench\u003c\/li\u003e\n\u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Vertex","offers":[{"title":"Default Title","offer_id":53065916121453,"sku":"FK-101","price":54.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0911\/2184\/4589\/files\/fk-101.png?v=1772488749","url":"https:\/\/humboldtwatersystems.com\/products\/filter-kit-fk-101-for-vertex-coolers-copy","provider":"Humboldt Water Systems ","version":"1.0","type":"link"}