{"product_id":"filter-media-afm-dr-drydens-afm-grade-2-55lbs","title":"FILTER MEDIA, AFM, DR DRYDEN'S AFM GRADE 2 55lbs","description":"\u003cp dir=\"ltr\" data-path-to-node=\"0\" class=\"first-token\"\u003e\u003cspan class=\"\"\u003eThe \u003c\/span\u003e\u003cb data-path-to-node=\"0\" data-index-in-node=\"4\"\u003eDr. Dryden's AFM (Activated Filter Media) Grade 2 (55 lb \/ 25 kg Bag)\u003c\/b\u003e\u003cspan\u003e is an advanced,\u003c\/span\u003e\u003cspan\u003e bio-resistant,\u003c\/span\u003e\u003cspan\u003e self-sterilizing granular filter media engineered to serve as an intermediate transition and secondary filtration layer in commercial and residential pressurized glass\/sand filters.\u003c\/span\u003e\u003cspan\u003e Manufactured exclusively from selected,\u003c\/span\u003e\u003cspan\u003e upcycled green and brown container glass by Dryden Aqua,\u003c\/span\u003e\u003cspan\u003e AFM undergoes a patented three-stage activation process that imparts a permanent negative surface catalytic charge.\u003c\/span\u003e\u003cspan\u003e This renders the material 100% bio-resistant,\u003c\/span\u003e\u003cspan\u003e preventing bacterial colonization and biofilm formation,\u003c\/span\u003e\u003cspan\u003e eliminating media clumping\/channeling,\u003c\/span\u003e\u003cspan\u003e and substantially reducing the formation of harmful trichloramines and disinfection by-products (DBPs).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"1\"\u003e\u003cspan\u003eGrade 2 serves as the mid-bed grading layer,\u003c\/span\u003e\u003cspan\u003e positioned directly between the coarse Grade 3 underbed (or the bottom laterals in smaller filters) and the fine Grade 1 top polishing layer.\u003c\/span\u003e\u003cspan\u003e It prevents the fine Grade 1 media from migrating into the coarser underbed while establishing a graduated depth-filtration gradient that expands particulate holding capacity and ensures balanced hydraulic dispersion during backwash cycles.\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable data-path-to-node=\"2\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,1,0,0\"\u003e\u003cb data-path-to-node=\"2,1,0,0\" data-index-in-node=\"0\"\u003eTrade Name \/ Classification\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,1,1,0\"\u003eDr. Dryden’s AFM® (Activated Filter Media) – Grade 2\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,2,0,0\"\u003e\u003cb data-path-to-node=\"2,2,0,0\" data-index-in-node=\"0\"\u003eNominal Packaging Weight\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,2,1,0\"\u003e55.0 lbs (25.0 kg) per bag\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,3,0,0\"\u003e\u003cb data-path-to-node=\"2,3,0,0\" data-index-in-node=\"0\"\u003eMaterial Base\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,3,1,0\"\u003e100% Upcycled Green and Brown Container Glass\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,4,0,0\"\u003e\u003cb data-path-to-node=\"2,4,0,0\" data-index-in-node=\"0\"\u003eActivation Process\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,4,1,0\"\u003eChemically and thermally activated; permanently negative surface catalytic charge\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,5,0,0\"\u003e\u003cb data-path-to-node=\"2,5,0,0\" data-index-in-node=\"0\"\u003eGrain Grade \/ Sizing\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,5,1,0\"\u003eGrade 2: 0.7 mm to 2.0 mm (700 to 2,000 microns)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,6,0,0\"\u003e\u003cb data-path-to-node=\"2,6,0,0\" data-index-in-node=\"0\"\u003eParticle Shape\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,6,1,0\"\u003eSub-angular, non-porous, calibrated grains with smoothed safety edges (no sharp splinters)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,7,0,0\"\u003e\u003cb data-path-to-node=\"2,7,0,0\" data-index-in-node=\"0\"\u003eBulk Loose Density\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,7,1,0\"\u003eApprox. 78 lbs\/cu. ft. (1,250 kg\/m³) – \u003ci data-path-to-node=\"2,7,1,0\" data-index-in-node=\"39\"\u003e~15% lighter than standard #20 silica sand\u003c\/i\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,8,0,0\"\u003e\u003cb data-path-to-node=\"2,8,0,0\" data-index-in-node=\"0\"\u003eSpecific Gravity\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,8,1,0\"\u003e2.50\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,9,0,0\"\u003e\u003cb data-path-to-node=\"2,9,0,0\" data-index-in-node=\"0\"\u003eCertifications\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,9,1,0\"\u003eNSF\/ANSI 50 (Aquatic Facilities), NSF\/ANSI 61 (Drinking Water), ISO 9001:2015\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,10,0,0\"\u003e\u003cb data-path-to-node=\"2,10,0,0\" data-index-in-node=\"0\"\u003eChemical Resistance\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,10,1,0\"\u003eImmune to biological degradation, chlorine\/bromine oxidation, and ozone\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,11,0,0\"\u003e\u003cb data-path-to-node=\"2,11,0,0\" data-index-in-node=\"0\"\u003eTypical Bed Layering\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,11,1,0\"\u003eIntermediate\/support layer (commonly 15%–20% of total bed depth in multi-grade beds, or 50% in standard two-grade arrangements)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,12,0,0\"\u003e\u003cb data-path-to-node=\"2,12,0,0\" data-index-in-node=\"0\"\u003ePackaging Material\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,12,1,0\"\u003eHeavy-duty, UV-stabilized heavy-gauge plastic bag with moisture-sealed seams\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-path-to-node=\"3\"\u003e\u003cspan\u003eDue to AFM's lower bulk density compared to quartz sand (approx.\u003c\/span\u003e\u003cspan\u003e 78 lbs\/cu.\u003c\/span\u003e\u003cspan\u003e ft.\u003c\/span\u003e\u003cspan\u003e vs.\u003c\/span\u003e\u003cspan\u003e 100 lbs\/cu.\u003c\/span\u003e\u003cspan\u003e ft.\u003c\/span\u003e\u003cspan\u003e),\u003c\/span\u003e\u003cspan\u003e approximately \u003c\/span\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"116\"\u003e15% less media by weight\u003c\/b\u003e\u003cspan\u003e is required to achieve the equivalent volumetric depth in the filter vessel.\u003c\/span\u003e\u003cspan\u003e The \u003c\/span\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"222\"\u003eshipping weight\u003c\/b\u003e\u003cspan\u003e of a single bag is \u003c\/span\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"257\"\u003e55.0 to 55.5 lbs (25.0 to 25.2 kg)\u003c\/b\u003e\u003cspan\u003e gross.\u003c\/span\u003e\u003cspan\u003e For bulk commercial shipments,\u003c\/span\u003e\u003cspan\u003e it is standardly configured at \u003c\/span\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"361\"\u003e40 bags per pallet (2,200 lbs \/ 1,000 kg net)\u003c\/b\u003e\u003cspan\u003e,\u003c\/span\u003e\u003cspan\u003e palletized,\u003c\/span\u003e\u003cspan\u003e stretch-wrapped,\u003c\/span\u003e\u003cspan\u003e and capped with weather-resistant protective sheeting.\u003c\/span\u003e\u003c\/p\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":68275120111727,"sku":"DDAFM-2","price":192.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3785\/3807\/files\/images_2_7a886484-912f-44db-b442-250e5f0a5cd6.jpg?v=1794241331","url":"https:\/\/commercialpoolandspasupplies.com\/products\/filter-media-afm-dr-drydens-afm-grade-2-55lbs","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}