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Choose multistage filtration by capacity (Plus, Ultra, or Ultimate) or a targeted arsenic, fluoride, or nitrate cartridge, with or without SMART. For arsenic, fluoride, or nitrate cartridge options, test your water first and confirm results with follow-up testing after installation. Manufactured by Crystal Quest.\u003c\/p\u003e","brand":"Crystal Quest","offers":[{"title":"Multistage PLUS (10,000 Gallons)","offer_id":56211878281538,"sku":"CQE-US-00300","price":169.0,"currency_code":"USD","in_stock":true},{"title":"Multistage ULTRA (20,000 Gallons)","offer_id":56211878314306,"sku":"CQE-US-00301","price":189.0,"currency_code":"USD","in_stock":true},{"title":"Multistage ULTIMATE (30,000 Gallons)","offer_id":56211878347074,"sku":"CQE-US-00302","price":219.0,"currency_code":"USD","in_stock":true},{"title":"Arsenic","offer_id":56211878379842,"sku":"CQE-US-00380","price":209.0,"currency_code":"USD","in_stock":true},{"title":"Arsenic + SMART","offer_id":56211878412610,"sku":"CQE-US-00304","price":209.0,"currency_code":"USD","in_stock":true},{"title":"Fluoride","offer_id":56211878445378,"sku":"CQE-US-00305","price":189.0,"currency_code":"USD","in_stock":true},{"title":"Fluoride + SMART","offer_id":56211878478146,"sku":"CQE-US-00381","price":189.0,"currency_code":"USD","in_stock":true},{"title":"Nitrate Removal","offer_id":56211878510914,"sku":"CQE-US-00307","price":189.0,"currency_code":"USD","in_stock":true},{"title":"Nitrate Removal + SMART","offer_id":56211878543682,"sku":"CQE-US-00308","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1010\/2213\/8690\/files\/smart-disposable-under-sink-water-filter-system-crystal-quest-under-sink-water-filters-28707868573789.jpg?v=1790006863"},{"product_id":"countertop-reverse-osmosis-system","title":"Countertop Reverse Osmosis System","description":"\u003cp\u003eCountertop reverse osmosis system that connects to a standard kitchen faucet, bringing RO treatment to your counter without under-sink installation. 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