{"product_id":"nws-control-flow-aio-sulfur-sys","title":"Control Flow Air-Injection (AIO) Sulfur Filter","description":"\u003cp\u003eA complete whole-house air-injection filter. One price includes everything listed below.\u003c\/p\u003e\n\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eMineral tank\u003c\/th\u003e\n\u003cth\u003eMedia\u003c\/th\u003e\n\u003cth\u003eControl valve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e10\"x54\"\u003c\/td\u003e\n\u003ctd\u003e10\" x 54\"\u003c\/td\u003e\n\u003ctd\u003e1-1\/4 cu ft sulfur-removal filter media (catalytic carbon blend)\u003c\/td\u003e\n\u003ctd\u003eControl Flow metered air-injection valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12\"x52\"\u003c\/td\u003e\n\u003ctd\u003e12\" x 52\"\u003c\/td\u003e\n\u003ctd\u003e1-3\/4 cu ft sulfur-removal filter media (catalytic carbon blend)\u003c\/td\u003e\n\u003ctd\u003eControl Flow metered air-injection valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e13\"x54\"\u003c\/td\u003e\n\u003ctd\u003e13\" x 54\"\u003c\/td\u003e\n\u003ctd\u003e2 cu ft sulfur-removal filter media (catalytic carbon blend)\u003c\/td\u003e\n\u003ctd\u003eControl Flow metered air-injection valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14\"x65\"\u003c\/td\u003e\n\u003ctd\u003e14\" x 65\"\u003c\/td\u003e\n\u003ctd\u003e3-1\/2 cu ft sulfur-removal filter media (catalytic carbon blend)\u003c\/td\u003e\n\u003ctd\u003eControl Flow metered air-injection valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl valve:\u003c\/strong\u003e Control Flow metered air-injection valve with built-in air injection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBypass:\u003c\/strong\u003e bypass valve (included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMineral tank:\u003c\/strong\u003e black fiberglass-wrapped mineral tank with support bed and distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e sulfur-removal filter media (catalytic carbon blend), sized to the tank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso included:\u003c\/strong\u003e 1\" plumbing adapters, install and service manuals.\u003c\/li\u003e\n\u003cli\u003eShips pre-built, ready to install, free in the US.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow it works\u003c\/h3\u003e\n\u003cp\u003eThe valve draws a pocket of air into the top of the tank. Water passes through the air, which oxidizes iron, manganese and hydrogen sulfide into particles, and the media bed filters them out. Every day the valve backwashes the bed, sends the trapped particles to drain and refreshes the air pocket.\u003c\/p\u003e\n\u003ch3\u003eMedia benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRemoves hydrogen sulfide: no rotten-egg smell\u003c\/li\u003e\n\u003cli\u003eStops black staining on fixtures and silverware\u003c\/li\u003e\n\u003cli\u003eDaily automatic backwash keeps the bed clean\u003c\/li\u003e\n\u003cli\u003eAir injection oxidizes iron, manganese and sulfur with plain air, so no chemicals or chlorine are added\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy this system costs what it does\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003eThis system\u003c\/th\u003e\n\u003cth\u003eTypical lower-priced kits\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eIron and sulfur treatment\u003c\/td\u003e\n\u003ctd\u003eAir injection: oxidizes with plain air, no chemicals\u003c\/td\u003e\n\u003ctd\u003eOften chlorine or permanganate feed, or no oxidation step\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter design\u003c\/td\u003e\n\u003ctd\u003eAutomatic daily backwash keeps the media bed clean\u003c\/td\u003e\n\u003ctd\u003eOften a non-backwashing upflow head or a cartridge housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBypass valve\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eOften not included or an extra option\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia\u003c\/td\u003e\n\u003ctd\u003eNamed media, sized to the tank\u003c\/td\u003e\n\u003ctd\u003eMedia type or amount often not stated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003eShips pre-built, ready to install\u003c\/td\u003e\n\u003ctd\u003eOften ships in pieces for you to assemble and load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping\u003c\/td\u003e\n\u003ctd\u003eFree in the US\u003c\/td\u003e\n\u003ctd\u003eFree only above a minimum, or extra\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNot sure which size? Send a water test or tell us your symptoms and we will size it free.\u003c\/p\u003e\n\n\u003c!--wsp-original-below--\u003e\n\u003chr\u003e\n\u003ch2\u003eNWS Control-Flow air-injection sulfur system\u003c\/h2\u003e\n\u003cp\u003eThis system pairs the Control-Flow valve with air-injection oxidation to banish the rotten-egg hydrogen-sulfide odor that makes well water unpleasant to drink, cook with, and shower in — all without chemicals.\u003c\/p\u003e\n\u003ch3\u003eIs sulfur your problem?\u003c\/h3\u003e\n\u003cp\u003eA rotten-egg smell that is strongest in hot water or after periods of no use points to hydrogen sulfide. It is more than a nuisance: sulfide is mildly corrosive, can tarnish metal, and often accompanies iron, compounding staining problems. Removing it makes an immediate, noticeable difference at every faucet in the house.\u003c\/p\u003e\n\u003ch3\u003eHow it clears the smell\u003c\/h3\u003e\n\u003cp\u003eIncoming water passes through a pocket of air held at the top of the treatment tank, where the dissolved sulfide gas is oxidized into a solid that the media bed filters out. The Control-Flow valve then backwashes the bed and draws a fresh charge of air automatically, keeping odor removal consistent day after day with no feed pump or chemical to manage.\u003c\/p\u003e\n\u003ch3\u003eDesigned for hands-off ownership\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo chemical dosing\u003c\/strong\u003e to refill or calibrate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammable, self-renewing backwash\u003c\/strong\u003e from the Control-Flow head.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-tank layout\u003c\/strong\u003e for a cleaner installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOdor gone house-wide\u003c\/strong\u003e — showers, sinks, and appliances.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSulfur and iron often occur together, and this platform suits both; where hardness or acidity are also present, we will stage the treatment appropriately. The system installs on the main line with a backwash drain and a standard outlet for the valve. Send us your well test and we will confirm the configuration, size it to your flow, and ship it free in the US with manuals and expert help.\u003c\/p\u003e\u003ch3\u003eSupport and sizing\u003c\/h3\u003e\u003cp\u003eGetting sulfur removal right is about matching contact time to your flow, which is why we size every system to the household rather than selling a one-size unit. Send your water test and peak demand, and we will confirm the capacity, program the Control-Flow valve for your conditions, and remain on hand for any questions after it is installed.\u003c\/p\u003e\u003cp\u003eWith free US shipping, factory manuals, and a team that works with these systems every day, you can order with confidence and have fresh, odor-free water running throughout your home in short order.\u003c\/p\u003e\u003c!--rel-sys-v1--\u003e\u003cdiv class=\"related-systems\"\u003e\n\u003ch3\u003eRelated Systems \u0026amp; Configurations\u003c\/h3\u003e\n\u003cp\u003eComparing options? These related commercial water-treatment systems are frequently viewed alongside this one:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/fr\/products\/sentry-open-air-w-aqua-bstr-10-gpm-115v\"\u003eSentry Open Air w\/Aqua Bstr, 10 gpm\/115v\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/fr\/products\/nws-1-5-composite-control-aio\"\u003eNWS 1.5 Composite Control AIO\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/fr\/products\/16-x-65-1-5-composite-control-aio\"\u003e16\" X 65\" 1.5\" Composite Control AIO\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/fr\/products\/nws-cf-aio-w-ozone-w-katalox\"\u003eNWS CF AIO w\/Ozone w\/Katalox\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Nelsen Corporation","offers":[{"title":"10\"x54\"","offer_id":45714561466421,"sku":"AIO-CFM-NWS-C10T-S-UPS","price":1981.99,"currency_code":"USD","in_stock":true},{"title":"12\"x52\"","offer_id":45714561499189,"sku":"AIO-CFM-NWS-C12-S-UPS","price":2314.99,"currency_code":"USD","in_stock":true},{"title":"13\"x54\"","offer_id":45714561531957,"sku":"AIO-CFM-NWS-C13-S","price":2753.99,"currency_code":"USD","in_stock":true},{"title":"14\"x65\"","offer_id":45714561564725,"sku":"AIO-CFM-NWS-C14-S-UPS","price":3431.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/4950\/2261\/files\/nws-control-flow-aio-sulfur-sys.png?v=1793991768","url":"https:\/\/checkout.watersoftenerplus.com\/fr\/products\/nws-control-flow-aio-sulfur-sys","provider":"Water Softener Plus","version":"1.0","type":"link"}