{"product_id":"nelsen-21-x-62-filter-unit","title":"Nelsen 21\" x 62\" Filter Unit","description":"\u003cp\u003eThe Nelsen 21\" x 62\" Filter Unit from Water Softener Plus is a heavy-duty commercial filtration system engineered for high-volume applications, controlled by the powerful Nelsen WS1.5EE 1-1\/2\" valve. Its wide 21\" tank accommodates a large media bed, providing the capacity and contact time that demanding commercial and industrial sites require for consistent, high-throughput treatment.\u003c\/p\u003e\n\u003cp\u003eThis system is built to perform under serious load. The Nelsen WS1.5EE control valve supports a 60 gpm service flow rate and 50 gpm backwash, all managed by a solid-state microprocessor with easy front-panel programming. Six fully adjustable cycles handle controlled backwash, down-flow brining and slow rinse, a second backwash, fast rinse, refill, and down-flow service, with an optional double backwash feature available for enhanced regeneration and cleaning efficiency in the most demanding settings.\u003c\/p\u003e\n\u003ch3\u003eOperator-Friendly Monitoring\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLarge 21\" x 62\" commercial tank for high-capacity filtration\u003c\/li\u003e\n\u003cli\u003eNelsen WS1.5EE 1-1\/2\" top-mount valve, lead-free brass construction\u003c\/li\u003e\n\u003cli\u003e60 gpm service flow rate with 50 gpm backwash\u003c\/li\u003e\n\u003cli\u003eSix adjustable cycles plus optional double backwash\u003c\/li\u003e\n\u003cli\u003eFront-panel totalizer display tracks flow, volume, and regeneration timing\u003c\/li\u003e\n\u003cli\u003eCoin-cell lithium backup (8-hour carryover) with proven DC drive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe front-panel display keeps operators fully informed, reporting time of day, days until next regeneration, volume remaining, current flow rate, and total volume used through the built-in totalizer. This visibility is invaluable for managing a large commercial system, allowing staff to monitor consumption, verify proper operation, and plan maintenance before any issue affects service. Flexible regeneration options, including meter immediate, meter delayed, and time-clock delayed, let you tailor operation to the facility's specific usage patterns, while post-treated water is used for regenerant refill.\u003c\/p\u003e\n\u003cp\u003eReliability features round out the package: a coin-cell lithium battery backup with an 8-hour carryover preserves settings through power interruptions, a 12-volt AC adapter provides safe and easy installation, and a proven DC drive ensures dependable long-term mechanical operation. The lead-free brass valve construction meets potable-water standards while enduring continuous heavy use.\u003c\/p\u003e\n\u003cp\u003eShipped complete with commercial distributors and a gravel under-bed, the unit accepts a range of filter media so it can be configured precisely for your application and water-quality goals. For high-demand commercial filtration that combines large capacity with precise, automated control, the Nelsen 21\" x 62\" filter unit is a dependable workhorse.\u003c\/p\u003e","brand":"Nelsen Corporation","offers":[{"title":"Default Title","offer_id":45668876976181,"sku":"WS15EE-AF21","price":3165.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/4950\/2261\/files\/ws15ee_8084c640-2db7-4a43-b55c-2f41b8b8683b.jpg?v=1782680064","url":"https:\/\/watersoftenerplus.com\/sv-eu\/products\/nelsen-21-x-62-filter-unit","provider":"Water Softener Plus","version":"1.0","type":"link"}