{"product_id":"unicel-pool-filter-cartridge-c-8412-120-sq-ft-replacement-for-hayward-cx1200re-waterway-172-pleats-oem-gaskets","title":"Unicel Pool Filter Cartridge C-8412 — 120 sq ft Replacement for Hayward CX1200RE \/ Waterway, 172 Pleats \u0026 OEM Gaskets","description":"\u003cp\u003e\u003cstrong\u003eUnicel C-8412 is a 120-square-foot replacement pool filter cartridge built to match Hayward CX1200RE and Waterway Pro Clean\/Clearwater II 125 performance with precise dimensions and OEM-style gaskets.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your pool or spa filtration system uses a Hayward CX1200RE or Waterway Pro Clean\/Clearwater II 125 cartridge, the Unicel C-8412 offers the correct fit, pleat count and media to restore efficient filtration. This replacement is engineered to meet original equipment specifications: correct diameter and overall length, open molded-gasket end caps, a 4.00-inch inner diameter on both ends, and 172 pleats constructed from 4-ounce reemay 2040 media for 120 square feet of filter area.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this cartridge improve my pool's filtration?\u003c\/h3\u003e\n\u003cp\u003eThe Unicel C-8412 restores surface area and flow characteristics to systems designed for a 120 sq ft cartridge, improving the capture of fine particles and reducing turbidity. Using the correct media and pleat count helps maintain consistent pressure and performance between cleanings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e120 square feet of filter area for increased dirt-holding capacity\u003c\/li\u003e\n  \u003cli\u003e172 pleats for even flow distribution and improved particle capture\u003c\/li\u003e\n  \u003cli\u003e4-ounce reemay 2040 media for balanced filtration and longevity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this cartridge fit my Hayward or Waterway housing?\u003c\/h3\u003e\n\u003cp\u003eYes, when your system calls for a 120 sq ft element with matching dimensions and open molded-gasket end caps. Always verify overall length (OAL) and compare the top\/bottom inner diameters to ensure a correct match with Pro Clean 125 versus Pro Clean 150 variations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDiameter: 8 15\/16-inch; Length: 23 5\/16-inch\u003c\/li\u003e\n  \u003cli\u003eTop and bottom end caps: open with molded gaskets, 4.00-inch inner diameter\u003c\/li\u003e\n  \u003cli\u003eDirect replacement for Hayward CX1200RE and Waterway Plastics 817-0125N\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow often should I clean or replace this filter cartridge?\u003c\/h3\u003e\n\u003cp\u003eCleaning frequency depends on pool size, bather load and local debris levels; inspect pressure rise and clarity to guide maintenance. Regular cleaning extends service life, but replace the cartridge when pleats deform, media frays, or cleaning no longer restores original performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck pressure gauge regularly; significant pressure rise indicates cleaning needed\u003c\/li\u003e\n  \u003cli\u003eRinse and soak cartridges per manufacturer guidance to remove oils and fine debris\u003c\/li\u003e\n  \u003cli\u003eReplace when pleats or media show permanent damage or poor recovery after cleaning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the technical specs I should confirm before buying?\u003c\/h3\u003e\n\u003cp\u003eMatch the cartridge’s diameter, overall length, end-cap style and inner diameters to your existing element. Confirm the pleat count and media type if your system requires a specific filtration area or flow profile.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDimensions: 8 15\/16-inch diameter, 23 5\/16-inch length\u003c\/li\u003e\n  \u003cli\u003eEnd caps: open with molded gasket; 4.00-inch inner diameter top and bottom\u003c\/li\u003e\n  \u003cli\u003ePleats: 172; Media: 4-ounce reemay 2040; Filter area: 120 sq ft\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Unicel C-8412 is intended for pool and spa owners, service professionals and retailers replacing a worn or damaged 120 sq ft cartridge in Hayward CX1200RE or Waterway Pro Clean\/Clearwater II 125 housings. It’s suitable when the original element matches the listed dimensions and gasket style and when you need an OEM-spec replacement to maintain efficient filtration and consistent water clarity between cleanings.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the Unicel C-8412 compatible with Hayward CX1200RE?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it matches the CX1200RE dimensions and open molded-gasket ends for proper fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many pleats and what filter area does it provide?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The cartridge has 172 pleats and delivers 120 square feet of filtration area.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Unicel","offers":[{"title":"Default Title","offer_id":56843589157204,"sku":"B0039QC0T6","price":153.19,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/unicel-c-8412-front-view.jpg?v=1787080904","url":"https:\/\/gardenluxe.co.uk\/products\/unicel-pool-filter-cartridge-c-8412-120-sq-ft-replacement-for-hayward-cx1200re-waterway-172-pleats-oem-gaskets","provider":"Gardenluxe Uk","version":"1.0","type":"link"}