{"title":"Undersink Filtration Systems","description":null,"products":[{"product_id":"smart-under-sink-water-filter-system","title":"SMART Under Sink Water Filter System by Crystal Quest","description":"\u003cp\u003eEnjoy fresh, clean, great-tasting water straight from your kitchen faucet with the \u003cstrong\u003eCrystal Quest SMART Under Sink Water Filter System\u003c\/strong\u003e. This premium multi-stage filtration unit delivers powerful contaminant reduction in a compact, convenient design that fits neatly under your sink.\u003c\/p\u003e\n\u003ch4\u003eKey Features:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSMART multi-stage filtration\u003c\/strong\u003e – Combines sediment, carbon block, and Crystal Quest’s exclusive SMART media to reduce chlorine, lead, pesticides, pharmaceuticals, VOCs, and heavy metals while improving taste and odor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreserves essential minerals\u003c\/strong\u003e – Maintains beneficial minerals such as calcium and magnesium for naturally balanced, healthier water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-lasting filters\u003c\/strong\u003e – Up to 10,000 gallons or 1 year of clean water before replacement (depending on usage and water quality).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy DIY installation\u003c\/strong\u003e – Includes faucet, tubing, and quick-connect fittings for straightforward setup under most standard sinks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBPA-free and made in the USA\u003c\/strong\u003e – Built with high-quality, certified components for long-term reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eIdeal For:\u003c\/h4\u003e\n\u003cp\u003eHomes, offices, apartments, and anyone seeking a high-performance under-sink filtration system that eliminates the need for bottled water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 14″ H × 10″ W × 5″ D\u003cbr\u003e\u003cstrong\u003eFilter Life:\u003c\/strong\u003e 10,000 gallons or approximately 12 months\u003cbr\u003e\u003cstrong\u003eModel #:\u003c\/strong\u003e CQE-US-00315\u003c\/p\u003e\n\u003cp\u003eExperience the difference of clean, mineral-balanced water every time you turn on the tap with Crystal Quest’s advanced SMART filtration technology.\u003c\/p\u003e","brand":"Crystal Quest","offers":[{"title":"Single","offer_id":52628975681901,"sku":"CQE-US-00303","price":149.9,"currency_code":"USD","in_stock":true},{"title":"Double","offer_id":52628975714669,"sku":"CQE-US-00306","price":178.35,"currency_code":"USD","in_stock":true},{"title":"Triple","offer_id":52628975747437,"sku":"CQE-US-00309","price":208.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0911\/2184\/4589\/files\/SMARTUnderSinkWaterFilterSystem-single_5853da3d-f5a0-474b-ba4d-5d2c7867f00b.png?v=1760923576"},{"product_id":"fluoride-under-sink-water-filter-system-by-crystal-quest","title":"Fluoride Under Sink Water Filter System by Crystal Quest","description":"\u003cp\u003e\nThe Fluoride Under Sink Water Filter System by Crystal Quest is your go-to solution for clean, fluoride-free water. \nDesigned for easy under-sink installation, this system includes the Fluoride Removal Water Filter Cartridge, along with optional SMART and Carbon Block filters for the double and triple configurations. \nBuilt to last and made in the USA, it provides on-demand access to purified water right where you need it. \nEco-friendly and dependable — enhance your water quality today with this reliable filtration system!\n\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEffectively reduces or removes fluoride, chlorine, heavy metals, and other contaminants.\u003c\/li\u003e\n  \u003cli\u003eNeat under-sink installation with included faucet and hardware.\u003c\/li\u003e\n  \u003cli\u003eOptional SMART and Carbon Block cartridges for enhanced filtration.\u003c\/li\u003e\n  \u003cli\u003eMade in the USA with eco-friendly materials.\u003c\/li\u003e\n  \u003cli\u003eAvailable in Single, Double, or Triple configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAvailable Configurations\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eConfiguration\u003c\/th\u003e\n      \u003cth\u003eCarbon Block Filter\u003c\/th\u003e\n      \u003cth\u003eFluoride Filter\u003c\/th\u003e\n      \u003cth\u003eSMART Filter\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSingle\u003c\/td\u003e\n      \u003ctd\u003eNo\u003c\/td\u003e\n      \u003ctd\u003eYes\u003c\/td\u003e\n      \u003ctd\u003eNo\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDouble\u003c\/td\u003e\n      \u003ctd\u003eNo\u003c\/td\u003e\n      \u003ctd\u003eYes\u003c\/td\u003e\n      \u003ctd\u003eYes\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTriple\u003c\/td\u003e\n      \u003ctd\u003eYes\u003c\/td\u003e\n      \u003ctd\u003eYes\u003c\/td\u003e\n      \u003ctd\u003eYes\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTechnical Details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFluoride Filter:\u003c\/strong\u003e Uses calcium charcoal granulated activated carbon (GAC) to reduce fluoride, lead, and arsenic. Capacity: approx. 1,000–1,500 gallons.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSMART Cartridge:\u003c\/strong\u003e Copper-zinc alloy media (ERA-6500\/9500) + ion-exchange resins + GAC for heavy metal and hardness reduction.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarbon Block Filter:\u003c\/strong\u003e 5-micron solid carbon block for removal of VOCs, pesticides, and sediment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSystem Dimensions\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle: 5\" L × 14\" H × 5\" W\u003c\/li\u003e\n  \u003cli\u003eDouble: 10\" L × 14\" H × 5\" W\u003c\/li\u003e\n  \u003cli\u003eTriple: 15\" L × 14\" H × 5\" W\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOperating Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eConnection Size: ¼\"\u003c\/li\u003e\n  \u003cli\u003ePressure: 20–60 psi\u003c\/li\u003e\n  \u003cli\u003eTemperature: 40–90°F\u003c\/li\u003e\n  \u003cli\u003eMaximum Flow Rate: 0.5 GPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\n","brand":"Crystal Quest","offers":[{"title":"Single","offer_id":52633261212013,"sku":"CQE-US-00321","price":160.9,"currency_code":"USD","in_stock":true},{"title":"Double","offer_id":52633261244781,"sku":"CQE-US-00316","price":201.35,"currency_code":"USD","in_stock":true},{"title":"Triple","offer_id":52633261277549,"sku":"CQE-US-00317","price":232.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0911\/2184\/4589\/files\/fluoridesingle.png?v=1761082483"},{"product_id":"pt-4-0-4-stage-ro-system","title":"PT-4.0 – 4-Stage Certified 36 GPD Reverse Osmosis System","description":"\u003ch2\u003ePT-4.0 – 4-Stage Certified 36 GPD Reverse Osmosis System\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe PT-4.0\u003c\/strong\u003e is a certified 4-stage residential reverse osmosis system designed to deliver clean, great-tasting drinking water directly from your tap. Rated at \u003cstrong\u003e36 gallons per day (GPD)\u003c\/strong\u003e, this compact under-sink system provides reliable multi-stage filtration for homes seeking dependable water purification.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe PT-4.0 uses a traditional 4-stage filtration process that combines sediment filtration, carbon filtration, and reverse osmosis membrane technology to reduce contaminants, chlorine, taste, and odor.\u003c\/p\u003e\n\u003cp\u003eIdeal for residential kitchen installations, this system includes a \u003cstrong\u003e4-gallon storage tank\u003c\/strong\u003e and all necessary installation hardware. Its standard 2.5” × 10” vertical filter housings allow for simple servicing and long-term maintenance.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eFiltration Stages\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 1:\u003c\/strong\u003e 5-Micron Sediment Filter – Removes dirt, rust, and suspended solids.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 2:\u003c\/strong\u003e Carbon Block Filter – Reduces chlorine, taste, and odor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 3:\u003c\/strong\u003e 36 GPD TFC RO Membrane – Reduces dissolved solids and a wide range of contaminants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 4:\u003c\/strong\u003e Inline Post Carbon Filter – Final polishing stage for improved taste.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eSystem Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProduction Capacity: 36 Gallons Per Day (GPD)\u003c\/li\u003e\n\u003cli\u003eMembrane Type: TFC Reverse Osmosis\u003c\/li\u003e\n\u003cli\u003eFilter Housing Size: 2.5” × 10” standard housings\u003c\/li\u003e\n\u003cli\u003eTank Size: 4-Gallon Storage Tank\u003c\/li\u003e\n\u003cli\u003eConnections: 1\/4” Jaco compression fittings\u003c\/li\u003e\n\u003cli\u003eInstallation Hardware: Included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eMaintenance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement Filter Kit: \u003cstrong\u003eFK-100\u003c\/strong\u003e (for annual pre\/post filter replacement)\u003c\/li\u003e\n\u003cli\u003eReplacement Membrane: \u003cstrong\u003eMA-4202 (36 GPD)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eRecommended Filter Replacement: Every 6–12 months\u003c\/li\u003e\n\u003cli\u003eMembrane Replacement: Typically every 2–3 years depending on water quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eResidential under-sink installations\u003c\/li\u003e\n\u003cli\u003eHomes seeking improved taste and odor reduction\u003c\/li\u003e\n\u003cli\u003eMunicipal water supplies with chlorine present\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e📄 \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0911\/2184\/4589\/files\/Vertex_PT_4.0.pdf?v=1772493185\" target=\"_blank\" rel=\"noopener\"\u003eDownload PT-4.0 Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"Default Title","offer_id":53065968124269,"sku":"PT-4.0","price":260.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0911\/2184\/4589\/files\/PT40.png?v=1772492174"},{"product_id":"pt-4-0-5-5-stage-certified-36-gpd-reverse-osmosis-system-copy","title":"PT-4.0\/5 – 5-Stage Certified 36 GPD Reverse Osmosis System","description":"\u003ch2\u003ePT-4.0\/5 – 5-Stage Certified 36 GPD Reverse Osmosis System\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe PT-4.0\/5\u003c\/strong\u003e is a certified 5-stage residential reverse osmosis system engineered to deliver clean, great-tasting drinking water directly from your tap. Rated at \u003cstrong\u003e36 gallons per day (GPD)\u003c\/strong\u003e, this under-sink system provides enhanced pre-filtration for improved chlorine reduction and membrane protection.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe PT-4.0\/5 expands on the standard 4-stage design by adding an additional carbon filtration stage before the RO membrane. This extra layer improves chlorine reduction, protects the membrane from chemical damage, and enhances overall system longevity.\u003c\/p\u003e\n\u003cp\u003eDesigned for residential kitchen installations, this system includes a \u003cstrong\u003e4-gallon storage tank\u003c\/strong\u003e, standard 2.5” × 10” filter housings, and complete installation hardware for reliable, long-term performance.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eFiltration Stages\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 1:\u003c\/strong\u003e 5-Micron Sediment Filter – Removes dirt, rust, and suspended solids.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 2:\u003c\/strong\u003e Carbon Block Filter – Reduces chlorine, taste, and odor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 3:\u003c\/strong\u003e Additional Carbon Filtration – Further chlorine and chemical reduction for enhanced membrane protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 4:\u003c\/strong\u003e 36 GPD TFC RO Membrane – Reduces dissolved solids and a wide range of contaminants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 5:\u003c\/strong\u003e Inline Post Carbon Filter – Final polishing stage for improved taste before dispensing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eSystem Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProduction Capacity: 36 Gallons Per Day (GPD)\u003c\/li\u003e\n\u003cli\u003eMembrane Type: TFC Reverse Osmosis\u003c\/li\u003e\n\u003cli\u003eFilter Housing Size: 2.5” × 10” standard housings\u003c\/li\u003e\n\u003cli\u003eTank Size: 4-Gallon Storage Tank\u003c\/li\u003e\n\u003cli\u003eConnections: 1\/4” Jaco compression fittings\u003c\/li\u003e\n\u003cli\u003eInstallation Hardware: Included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eMaintenance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement Filter Kit: \u003cstrong\u003eFK-101\u003c\/strong\u003e (for annual pre\/post filter replacement)\u003c\/li\u003e\n\u003cli\u003eReplacement Membrane: \u003cstrong\u003eMA-4202 (36 GPD)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eRecommended Filter Replacement: Every 6–12 months\u003c\/li\u003e\n\u003cli\u003eMembrane Replacement: Typically every 2–3 years depending on water quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eResidential under-sink installations\u003c\/li\u003e\n\u003cli\u003eHomes with moderate chlorine levels\u003c\/li\u003e\n\u003cli\u003eCustomers seeking enhanced membrane protection\u003c\/li\u003e\n\u003cli\u003eUsers wanting improved taste and odor reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e📄 \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0911\/2184\/4589\/files\/Vertex_PT_4.0_5.pdf?v=1772493189\" target=\"_blank\" rel=\"noopener\"\u003eDownload PT-4.0\/5 Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"Default Title","offer_id":53065999909229,"sku":"PT-4.0\/5","price":280.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0911\/2184\/4589\/files\/PT405.png?v=1772492563"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0911\/2184\/4589\/collections\/PT405.png?v=1786388073","url":"https:\/\/humboldtwatersystems.com\/collections\/undersink-filtration-systems.oembed","provider":"Humboldt Water Systems ","version":"1.0","type":"link"}