{"product_id":"4-stage-compact-rodi-reverse-osmosis-system","title":"4 Stage Compact RODI System - Aquarium RO Unit with Inline DI Resin Chamber","description":"\u003cp dir=\"ltr\"\u003eProduce crystal-clear, zero-TDS water at home with our compact 4-stage reverse osmosis system. This plug-and-play unit is designed for aquariums, \u003ca href=\"\/collections\/window-cleaning-water-filters\"\u003ewindow cleaning\u003c\/a\u003e, and domestic use, great for \u003ca href=\"\/collections\/fish-tank-water-filters\"\u003efishkeepers\u003c\/a\u003e and anyone needing pure water on demand.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eSign up for a Finerfilters account to track orders, save your favourite products, and reorder in just a few clicks.\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003eAbout This Compact 4-Stage RODI System\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003eThis system combines sediment and carbon pre-filtration with a reverse osmosis membrane and an inline DI resin chamber to deliver outstanding water purity. \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eIt removes \u003ca href=\"\/collections\/chlorine-water-filters\"\u003echlorine\u003c\/a\u003e, \u003ca href=\"\/collections\/chloramine-water-filters\"\u003echloramine\u003c\/a\u003e, \u003ca href=\"\/collections\/heavy-metals-water-filters\"\u003eheavy metals\u003c\/a\u003e, and other impurities that can harm aquatic life or leave streaks during cleaning.\u003c\/p\u003e\n\u003cp\u003eThe system comes ready to install, and with all the required accessories included, such as:\u003c\/p\u003e\n\u003cp\u003e\u003c!-- [if !supportLists]--\u003e●      \u003c!--[endif]--\u003eRO tubing\u003c\/p\u003e\n\u003cp\u003e\u003c!-- [if !supportLists]--\u003e●      \u003c!--[endif]--\u003eTubing fittings\u003c\/p\u003e\n\u003cp\u003e\u003c!-- [if !supportLists]--\u003e●      \u003c!--[endif]--\u003eGarden tap connector\u003c\/p\u003e\n\u003cp\u003e\u003c!-- [if !supportLists]--\u003e●      \u003c!--[endif]--\u003eWaste-water clamp\u003c\/p\u003e\n\u003cp\u003e\u003c!-- [if !supportLists]--\u003e●      \u003c!--[endif]--\u003eMembrane housing panner\u003c\/p\u003e\n\u003ch3\u003eThe RODI System’s Four Stages\u003c\/h3\u003e\n\u003col start=\"1\" type=\"1\"\u003e\n\u003cli\u003eThe sediment pre-filter removes sand, rust, silt, and other large particulates, protecting the downstream components.\u003c\/li\u003e\n\u003cli\u003eThe carbon block filter reduces the chlorine, chloramines, and organic chemicals in the water, improving its taste and protecting the RO membrane.\u003c\/li\u003e\n\u003cli\u003eThe RO membrane filters out dissolved solids, heavy metals, and microscopic contaminants all the way down to 0.0001 µm.\u003c\/li\u003e\n\u003cli\u003eThe inline DI resin chamber removes the remaining charged ions to produce very pure water with near-zero TDS.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eAt 50 GPD, the unit can produce approximately 185 litres per day, 275 litres of 75 GPD, and 370 litres a day at 100 GPD.\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003eWhy Choose Finerfilters?\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003eWe’re one of the UK’s leading names in home and aquarium filtration, trusted by thousands of customers across the UK and internationally.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eEach of our kits comes complete with fittings, tubing, and connectors, including a garden tap and mains pipe adapter, so you can start producing RO water straight away. \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eWith filters that typically last up to six months and membranes that last 1–3 years depending on water hardness, you’ll get great long term use out of our products.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eAnd with a UK-based support team ready to help, every order is backed by fast dispatch and a dependable service.\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003eOrder Your Compact RO System Today\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003eIf you're upgrading your aquarium setup or need spotless water for cleaning, the Finerfilters 4 Stage Compact RO System is a smart solution. Buy today with fast UK delivery. Need advice on which GPD rating to choose? Our \u003ca href=\"\/pages\/help-centre\"\u003ehelp centre\u003c\/a\u003e is here to support any queries.\u003c\/p\u003e","brand":"Finerfilters","offers":[{"title":"50 Gallons Per Day","offer_id":56193534689655,"sku":"RO-SYST-COMP4-75","price":42.99,"currency_code":"GBP","in_stock":true},{"title":"75 Gallons Per Day","offer_id":56193534722423,"sku":"RO-SYST-COMP4-75","price":45.99,"currency_code":"GBP","in_stock":true},{"title":"100 Gallons Per Day","offer_id":56193534755191,"sku":"RO-SYST-COMP4-100","price":48.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/9873\/2919\/files\/4_stage_aquatic_ro-h1_100gpd._04_no_logo_1.jpg?v=1763355435","url":"https:\/\/www.finerfilters.co.uk\/products\/4-stage-compact-rodi-reverse-osmosis-system","provider":"Finerfilters","version":"1.0","type":"link"}