{"product_id":"unicel-18-de-filter-grid-set-pac-fab-american-hayward-fs-2003","title":"Unicel 18\" Complete DE Filter Grid Set, 36 sq. ft. | FS-2003","description":"\u003cp\u003eThe \u003cstrong\u003eUnicel FS-2003\u003c\/strong\u003e is a \u003cstrong\u003ecomplete replacement DE filter grid set\u003c\/strong\u003e for 36 square foot filter systems. This set includes everything required for a full filter re-grid in one order — precision-engineered Unicel grids built for exact manifold fit, long service life, and reliable pressure performance in residential DE filtration systems.\u003c\/p\u003e\n\n\u003cp style=\"background-color: #fff3cd; border: 2px solid #FFEAA7; padding: 15px; border-radius: 5px; margin: 15px 0;\"\u003e\n\u003cstrong\u003e📦 Complete DE Filter Grid Set — 8 Grids Included\u003c\/strong\u003e\u003cbr\u003e\nThis set includes all grids needed for one complete filter re-grid: \u003cstrong\u003e7 full grids (\u003ca href=\"https:\/\/www.poolaroo.com\/products\/unicel-18-de-filter-grid-pac-fab-american-hayward-sta-rite-fg-1003\"\u003eFG-1003\u003c\/a\u003e) + 1 partial grid (\u003ca href=\"https:\/\/www.poolaroo.com\/products\/unicel-18-filter-grid-astral-pac-fab-american-hayward-pg-1903\"\u003ePG-1903\u003c\/a\u003e)\u003c\/strong\u003e. One set = one complete filter service.\n\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eUnicel Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eFS-2003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eFilter System Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e36 sq. ft. (total system)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eSet Composition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e7 full grids (FG-1003) + 1 partial grid (PG-1903)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eGrid Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e18\" (measured end-to-end; collar not included in measurement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eCollar Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eOpen slot (2 notches)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eHigh-grade DE filter fabric with reinforced seaming\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote from Unicel:\u003c\/strong\u003e Collar has open slot (2 notches). Length is measured from one end of the grid to the other — collar not included in measurement. Measure your existing grids end-to-end (excluding the collar) to verify fit before ordering.\u003c\/p\u003e\n\n\u003ch3\u003ePro Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify your grid length before ordering:\u003c\/strong\u003e Measure your old grids from end-to-end, excluding the collar. Confirm the open slot (2-notch) collar style matches your filter manifold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplace all grids at once:\u003c\/strong\u003e Replacing the full set together ensures even pressure distribution and prevents premature failure of older grids left in service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety first:\u003c\/strong\u003e Always turn off the pump and release all pressure from the filter tank via the air relief valve before opening the tank to replace grids.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInspect on reassembly:\u003c\/strong\u003e Check the tank o-ring and manifold assembly for wear or cracking before sealing the tank and returning the system to service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"sku-aliases\"\u003e\u003csmall\u003eAlso known as: FS2003\u003c\/small\u003e\u003c\/p\u003e","brand":"Unicel","offers":[{"title":"Default Title","offer_id":51588842815763,"sku":"FS-2003","price":129.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/poolaroo.com\/products\/unicel-18-de-filter-grid-set-pac-fab-american-hayward-fs-2003","provider":"Poolaroo","version":"1.0","type":"link"}