{"product_id":"rkin-flash-undersink-ro-filter-kit","title":"Flash Undersink Reverse Osmosis System Replacement Filter Cartridge Kit","description":"\u003cp\u003eA full set of replacement reverse osmosis system filters for the RKIN Flash undersink reverse osmosis system.\u003c\/p\u003e\u003cp\u003eRecommended replacement every 12 months:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eFIRST STAGE FILTRATION:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e5-micron Prefilter reduces Sediment, Rust, and other large particles.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSECOND and THIRD STAGE FILTRATION:\u003cbr\u003eCarbon Block Filter reduces Chlorine and other Disinfection by-products.\u003c\/span\u003e\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eOption for a third stage filtration\u003cstrong\u003e Anti-Scale Carbon Prefilter.\u003c\/strong\u003e Use this option only when experiencing a short reverse osmosis membrane lifespan (under 2 years).   \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\u003cspan\u003eFIFTH STAGE OPTIONS:\u003c\/span\u003e\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eAlcaPure \u003cstrong\u003eALKALINE POST FILTER.\u003c\/strong\u003e\u003c\/span\u003e Polishing Alkaline Post Filter adds minerals, calcium and magnesium, back to filtered water for better taste. It also raises the water's pH to 7-8.\u003c\/li\u003e\n\u003cli\u003eOr OnliPure \u003cstrong\u003eION EXCHANGE POST FILTER\u003c\/strong\u003e. Polishing OnliPure Post Filter reduces any leftover contaminants after the Reverse Osmosis process to zero TDS. \u003cspan\u003eDepending on local water quality and usage the OnliPure post filter might need to be replaced sooner to maintain 0 TDS.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: Third Stage Filtration - 75 Gallon Per Day Reverse Osmosis Membrane is NOT included with this bundle. This element needs to be replaced only every 2-4 years, or as-needed. If the reverse osmosis membrane is getting clogged due to high levels of hardness present in the water, please use the bundle option with an Anti-Scale Carbon prefilter.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eShips directly from the brand; shipping is calculated at checkout.\u003c\/p\u003e","brand":"RKIN","offers":[{"title":"AlcaPure","offer_id":62992556851281,"sku":"FLASHFBLAL","price":107.96,"currency_code":"USD","in_stock":false},{"title":"OnliPure","offer_id":62992556884049,"sku":"FLASHFBLDI","price":129.96,"currency_code":"USD","in_stock":true},{"title":"AlcaPure with AntiScale Carbon Pre-Filter","offer_id":62992556916817,"sku":"FLASHFBLAL-PPH","price":117.96,"currency_code":"USD","in_stock":true},{"title":"OnliPure with AntiScale Carbon Pre-Filter","offer_id":62992556949585,"sku":"FLASHFBLDI-PPH","price":139.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/9276\/8849\/files\/flash-undersink-reverse-osmosis-system-replacement-filters-kit-218505.png?v=1792268243","url":"https:\/\/arkprepstore.com\/products\/rkin-flash-undersink-ro-filter-kit","provider":"Ark Prep Store","version":"1.0","type":"link"}