{"product_id":"c-4305-unicel-50-sq-feet-cal-spa-martec-filter-1","title":"C-4305 Unicel 50 Sq. Feet Cal Spa\/Martec Filter","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\u003cp dir=\"ltr\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eThe Unicel C-4305 filter is a replacement cartridge for spas and hot tubs. It is designed with 193 pleats of durable, spun-bonded polyester material and has a 50-square-foot filtration area to trap debris and improve water clarity. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp dir=\"ltr\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;text-decoration:none;\"\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eDimensions: 4-15\/16 inches in diameter and 14-7\/8 inches in length.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eTop opening: 2-1\/8 inches, open.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eBottom opening: 2-1\/8 inches, open.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eFiltration area: 50 square feet.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003ePleat count: 193.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eFilter media: 3-ounce Reemay 2033 polyester. \u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp dir=\"ltr\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;text-decoration:none;\"\u003e\u003cstrong\u003eCompatible spas:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp dir=\"ltr\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eThe C-4305 is compatible with several spa brands and models: \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eCal Spas\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eMartec\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eSundance Spas (specifically the 1994 Suntub)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eSonfarrel\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eAdvantage Mfg \u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp dir=\"ltr\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eCross-reference replacements\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp dir=\"ltr\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eEquivalent filters from other brands that replace the Unicel C-4305 include: \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003ePleatco: PMT50\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eFilbur: FC-1630\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan style=\"background-color:transparent;color:#000000;\"\u003e\u003cspan style=\"font-family:Arial,sans-serif;font-size:11pt;font-style:normal;font-weight:400;text-decoration:none;\"\u003eFilters Fast®: FF-1630\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mastercraft Pool and Spa","offers":[{"title":"Default Title","offer_id":48403423527162,"sku":"FILT | SPA | C-4305","price":51.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/8973\/1066\/files\/10576.jpg?v=1780313344","url":"https:\/\/mastercraftpool.store\/products\/c-4305-unicel-50-sq-feet-cal-spa-martec-filter-1","provider":"Mastercraft Pool and Spa","version":"1.0","type":"link"}