{"product_id":"purinade-electropositive-filter-cartridge-2-5x5","title":"Purinade® Compact Replacement: 5\" x 2.5\" Electropositive Filter Cartridge (0.2-Micron Nominal)","description":"\u003ch2\u003eHow Electropositive Filtration Works\u003c\/h2\u003e\n\u003cp\u003eThis cartridge is the Argonide NanoCeram® P2.5-5 (2.5\" x 5\"), a pleated cartridge made by Argonide Corporation (Sanford, Florida). It is the standard non-AG version, with no silver. NanoCeram® media is a non-woven blend of microglass and cellulose fibers with nano-alumina fibers that carry a positive surface charge. Many fine particles in water carry a slight negative charge. As water passes through, the positively charged fibers attract and hold fine particles, while larger particles are captured mechanically.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRating:\u003c\/strong\u003e 0.2 micron (supplier rating), with an average pore size of about 2–3 microns\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated flow:\u003c\/strong\u003e up to 2.5 GPM (per supplier)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanism:\u003c\/strong\u003e charge attraction (electro-adhesion) plus mechanical capture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow pressure drop:\u003c\/strong\u003e the supplier reports flow comparable to conventional 1–2 micron pleated filters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSediment handling:\u003c\/strong\u003e high dirt-holding capacity (supplier figure: 82 g per square foot of media), so the cartridge copes well with cloudy water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo power needed\u003c\/strong\u003e for the filter itself\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest after prefiltration:\u003c\/strong\u003e upstream sediment and carbon stages reduce the load on the media and extend cartridge life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe NanoCeram media is certified by IAPMO R\u0026amp;T to NSF\/ANSI 53 for material safety. This is a materials certification of the media, not a performance certification, and it does not certify the Purinade system. Independent lab testing of our system is planned.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eReplacement: cartridge life depends on how much sediment is in your water. Replace when flow drops noticeably. Per the supplier, the terminal pressure drop is 35 psi.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-outline-level: 3;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 13.5pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eOverview Electropositive Media\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l3 level1 lfo1; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eElectropositive fibrous filter media with high particle removal efficiency and dirt holding capacity.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l3 level1 lfo1; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eIn pleated form, flow rate matches or exceeds 1-2 micron rated filters, despite 0.2 micron nominal rating.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l3 level1 lfo1; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eActs as a \"broad spectrum\" particle magnet, removing both coarse and fine particulates.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-outline-level: 3;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 13.5pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eComparison to Other Filters\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l1 level1 lfo2; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eMost filters (membranes, fibrous depth filters) use sieving, inertial impaction, interception, and diffusion.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l1 level1 lfo2; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eElectropositive filters rely on adsorption (electro-adhesion).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l1 level1 lfo2; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eUnlike electropositive membranes, this filter avoids low dirt holding, quick fouling, low reliability, and high costs for materials, maintenance, and operation.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-outline-level: 3;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 13.5pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eBenefits\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l4 level1 lfo3; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\n\u003cb\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eEnhanced Operations\u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e: Removes fines and coarse particulates, improving performance in various industries.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l4 level1 lfo3; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\n\u003cb\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eDirt Holding Capacity (DHC)\u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e: High (supplier figure: 82 g per square foot of media). \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cul type=\"circle\"\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l4 level2 lfo3; tab-stops: list 1.0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eFewer replacement elements.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l4 level2 lfo3; tab-stops: list 1.0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eLower maintenance costs.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l4 level2 lfo3; tab-stops: list 1.0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eLess system downtime.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l4 level1 lfo3; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\n\u003cb\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003ePressure Drop (ΔP)\u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e: Lower than tight filters. \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cul type=\"circle\"\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l4 level2 lfo3; tab-stops: list 1.0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eReduced energy use for fluid flow.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l4 level2 lfo3; tab-stops: list 1.0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eLess wear on system components.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l4 level1 lfo3; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\n\u003cb\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eReduced Operational Costs\u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e: Avoids membrane-related expenses. \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cul type=\"circle\"\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l4 level2 lfo3; tab-stops: list 1.0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eNo capital-intensive backflush systems or chemicals.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l4 level2 lfo3; tab-stops: list 1.0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eNo energy for backflush cycles.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l4 level2 lfo3; tab-stops: list 1.0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eMinimal water waste.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l4 level2 lfo3; tab-stops: list 1.0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eLower labor for cleaning.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l4 level2 lfo3; tab-stops: list 1.0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eNo hazardous waste disposal from backflushing.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-outline-level: 3;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 13.5pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eTechnical Explanation\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l5 level1 lfo4; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eElectroadhesion exploits charge differences via the double-layer effect in aqueous solutions.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l5 level1 lfo4; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eMost particles (especially smaller ones) are electronegative in water.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l5 level1 lfo4; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eElectropositive surfaces attract and retain particles more effectively than electronegative ones.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-outline-level: 3;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 13.5pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eAdvantages\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l2 level1 lfo5; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eUses nano alumina fibers with 350-500 m²\/g surface area, mostly external and exposed to particulates.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l2 level1 lfo5; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eSurface area unattainable in membranes or standard fibrous filters (even with nanofibers, which are hard to produce below 100nm vs. 2nm for nano alumina).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l2 level1 lfo5; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003ePrevents agglomeration (which reduces surface area) by grafting submicron alumina fibers to a scaffold, keeping them separate for optimal particle capture.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eApplications and Material Certification\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFine particulate filtration media for drinking-water pre-treatment and industrial process water.\u003c\/li\u003e\n\u003cli\u003eMaterial certification: The NanoCeram media is certified by IAPMO R\u0026amp;T to NSF\/ANSI 53 for material safety. This is a materials certification of the media, not a performance certification, and it does not certify the Purinade system.\u003c\/li\u003e\n\u003cli\u003eIndependent lab testing of Purinade® configurations is planned.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Greenivative","offers":[{"title":"Default Title","offer_id":49442204287169,"sku":null,"price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0055\/5837\/0371\/files\/nanoceram_0.2_micron_pleated_filter_4.5_x_10_inch.jpg?v=1753807343","url":"https:\/\/greenivative.com\/products\/purinade-electropositive-filter-cartridge-2-5x5","provider":"Greenivative","version":"1.0","type":"link"}