{"product_id":"mermade-143-87-horizontal-sand-filters-25-6-sq-ft-each-stacked-51-2-sq-ft-total","title":"Mermade 143-87 Horizontal Sand Filters, 25.6 Sq.ft Each, Stacked, 51.2 sq.ft Total","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\"\u003eMer-Made 143-87 Stacked Horizontal Sand Filter System (Two Tanks @ 25.6 sq. ft. Each, 51.2 sq. ft. Total Filter Area)\u003c\/b\u003e\u003cspan\u003e is a factory-engineered,\u003c\/span\u003e\u003cspan\u003e space-saving commercial dual-tank filtration package manufactured by Mer-Made Filter,\u003c\/span\u003e\u003cspan\u003e Inc.\u003c\/span\u003e\u003cspan\u003e Operating within Mer-Made’s \u003c\/span\u003e\u003cb data-path-to-node=\"0\" data-index-in-node=\"266\"\u003e42-inch outer diameter\u003c\/b\u003e\u003cspan\u003e vessel series in a two-tier vertical stacked orientation,\u003c\/span\u003e\u003cspan\u003e this configuration delivers over 51 sq.\u003c\/span\u003e\u003cspan\u003e ft.\u003c\/span\u003e\u003cspan\u003e of filtration surface area while maintaining the compact floor footprint of a single horizontal vessel.\u003c\/span\u003e\u003cspan\u003e It is engineered for large municipal aquatic centers,\u003c\/span\u003e\u003cspan\u003e collegiate competition pools,\u003c\/span\u003e\u003cspan\u003e resort water parks,\u003c\/span\u003e\u003cspan\u003e and high-rate athletic facilities requiring high hydraulic throughput within floor-space-constrained mechanical rooms.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"1\"\u003e\u003cspan\u003eThe system comprises two identical filament-wound fiberglass-reinforced polyester (FRP) pressure vessels mounted vertically one over the other using heavy-duty,\u003c\/span\u003e\u003cspan\u003e corrosion-proof structural FRP or epoxy-coated steel stacking saddles.\u003c\/span\u003e\u003cspan\u003e The vessels are plumbed in parallel with a Schedule 80 PVC common face piping manifold,\u003c\/span\u003e\u003cspan\u003e enabling simultaneous filtration and independent,\u003c\/span\u003e\u003cspan class=\"\"\u003e staged backwashing so that standard commercial filtration pumps can backwash each tank individually.\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\"\u003eModel Reference\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,1,1,0\"\u003eMer-Made 143-87 Stacked (143 Series Commercial Dual Horizontal)\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\"\u003eConfiguration\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,2,1,0\"\u003eTwo (2) horizontal vessels mounted in vertical stack (over\/under)\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\"\u003eEffective Filtration Area per Tank\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,3,1,0\"\u003e25.6 sq. ft. (2.38 m²)\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\"\u003eTotal System Filtration Area\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,4,1,0\"\u003e51.2 sq. ft. (4.76 m²)\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\"\u003eIndividual Tank Outer Diameter (OD)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,5,1,0\"\u003e42.0 in (1,067 mm)\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\"\u003eNominal Shell Length\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,6,1,0\"\u003eApprox. 87.0 in (2,210 mm)\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\"\u003eSystem Footprint (Width x Length)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,7,1,0\"\u003eApprox. 46.0 in W x 93.0 in L (1,168 mm x 2,362 mm)\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\"\u003eOverall Assembled Height\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,8,1,0\"\u003eApprox. 102.0 to 108.0 in H (2,591 mm to 2,743 mm)\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\"\u003eCommon Face Piping \/ Manifold Size\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,9,1,0\"\u003e6.0 in (150 mm) or 8.0 in (200 mm) ANSI Class 150 Flanged (Schedule 80 PVC standard)\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\"\u003eDesign Filtration Flow Rate (5 gpm\/sq. ft.)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,10,1,0\"\u003e256.0 US gpm (58.1 m³\/h)\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\"\u003eDesign Filtration Flow Rate (10 gpm\/sq. ft.)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,11,1,0\"\u003e512.0 US gpm (116.3 m³\/h)\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\"\u003eDesign Filtration Flow Rate (Max 14 gpm\/sq. ft.)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,12,1,0\"\u003e716.8 US gpm (162.8 m³\/h)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,13,0,0\"\u003e\u003cb data-path-to-node=\"2,13,0,0\" data-index-in-node=\"0\"\u003eDesign Filtration Flow Rate (Standard 15 gpm\/sq. ft.)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,13,1,0\"\u003e768.0 US gpm (174.4 m³\/h)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,14,0,0\"\u003e\u003cb data-path-to-node=\"2,14,0,0\" data-index-in-node=\"0\"\u003eRequired Backwash Flow Rate (Single Tank @ 15 gpm\/sq. ft.)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,14,1,0\"\u003e384.0 US gpm (87.2 m³\/h)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,15,0,0\"\u003e\u003cb data-path-to-node=\"2,15,0,0\" data-index-in-node=\"0\"\u003eTurnover Capacity (8-Hour @ 716.8 gpm)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,15,1,0\"\u003e344,064 US gal (1,302.4 m³)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,16,0,0\"\u003e\u003cb data-path-to-node=\"2,16,0,0\" data-index-in-node=\"0\"\u003eTurnover Capacity (6-Hour @ 716.8 gpm)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,16,1,0\"\u003e258,048 US gal (976.8 m³)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,17,0,0\"\u003e\u003cb data-path-to-node=\"2,17,0,0\" data-index-in-node=\"0\"\u003eMaximum Working Pressure\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,17,1,0\"\u003e50 psi (3.45 bar \/ 345 kPa)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,18,0,0\"\u003e\u003cb data-path-to-node=\"2,18,0,0\" data-index-in-node=\"0\"\u003eFactory Test Pressure\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,18,1,0\"\u003e75 psi (5.17 bar)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,19,0,0\"\u003e\u003cb data-path-to-node=\"2,19,0,0\" data-index-in-node=\"0\"\u003eCertifications\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,19,1,0\"\u003eNSF\/ANSI Standard 50 Certified (Commercial Pool and Spa)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,20,0,0\"\u003e\u003cb data-path-to-node=\"2,20,0,0\" data-index-in-node=\"0\"\u003eTotal Media Load per Tank (Sand + Gravel)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,20,1,0\"\u003eApprox. 4,100 to 4,600 lbs (1,860 to 2,087 kg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,21,0,0\"\u003e\u003cb data-path-to-node=\"2,21,0,0\" data-index-in-node=\"0\"\u003eTotal System Media Load (Both Tanks Combined)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,21,1,0\"\u003eApprox. 8,200 to 9,200 lbs (3,719 to 4,173 kg) total\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,22,0,0\"\u003e- \u003ci data-path-to-node=\"2,22,0,0\" data-index-in-node=\"2\"\u003eTop Layer: Filter Sand (#20 Silica \/ 20–30 mesh)\u003c\/i\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,22,1,0\"\u003eApprox. 5,700 to 6,400 lbs (2,585 to 2,903 kg) total [2,850–3,200 lbs\/tank]\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,23,0,0\"\u003e- \u003ci data-path-to-node=\"2,23,0,0\" data-index-in-node=\"2\"\u003eIntermediate \/ Underbed Layers (6–20 Sand \u0026amp; 1\/8\"–1\/4\" Stone)\u003c\/i\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,23,1,0\"\u003eApprox. 2,500 to 2,800 lbs (1,134 to 1,270 kg) total [1,250–1,400 lbs\/tank]\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,24,0,0\"\u003e- \u003ci data-path-to-node=\"2,24,0,0\" data-index-in-node=\"2\"\u003eAlternative AFM Media (Dr. Dryden's Activated Glass)\u003c\/i\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,24,1,0\"\u003eApprox. 6,970 to 7,820 lbs (3,162 to 3,547 kg) total \u003ci data-path-to-node=\"2,24,1,0\" data-index-in-node=\"53\"\u003e(~15% weight reduction)\u003c\/i\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,25,0,0\"\u003e\u003cb data-path-to-node=\"2,25,0,0\" data-index-in-node=\"0\"\u003eService Access\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,25,1,0\"\u003eIndividual elliptical manways (11\" x 15\" or 12\" x 16\") per vessel with EPDM gaskets\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,26,0,0\"\u003e\u003cb data-path-to-node=\"2,26,0,0\" data-index-in-node=\"0\"\u003eVessel Shell Material\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,26,1,0\"\u003eSeamless filament-wound fiberglass-reinforced polyester (FRP)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"3\"\u003e\u003cspan\u003eEach vessel includes an independent internal Schedule 80 PVC distribution header,\u003c\/span\u003e\u003cspan\u003e slotted PVC collector underdrain assembly,\u003c\/span\u003e\u003cspan\u003e automatic continuous internal air relief piping,\u003c\/span\u003e\u003cspan\u003e manual brass air bleeders,\u003c\/span\u003e\u003cspan\u003e and individual bottom water drain and media slurry cleanout ports.\u003c\/span\u003e\u003cspan\u003e The factory-assembled manifold incorporates heavy-duty butterfly isolation valves to allow either tank to be isolated for maintenance or backwashed sequentially without requiring oversized backwash pumps.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"4\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"4\"\u003eshipping weight\u003c\/b\u003e\u003cspan\u003e of the complete dual-tank package—including two vessels,\u003c\/span\u003e\u003cspan\u003e heavy-duty structural stacking frame\/saddles,\u003c\/span\u003e\u003cspan\u003e Schedule 80 PVC face piping manifold kit,\u003c\/span\u003e\u003cspan\u003e hardware,\u003c\/span\u003e\u003cspan\u003e and protective heavy-duty crating (excluding media)—is approximately \u003c\/span\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"244\"\u003e1,180 to 1,360 lbs (535 to 617 kg)\u003c\/b\u003e\u003cspan\u003e.\u003c\/span\u003e\u003cspan\u003e When charged with 8,\u003c\/span\u003e\u003cspan\u003e200–9,\u003c\/span\u003e\u003cspan\u003e200 lbs of sand\/gravel media and completely flooded during operation,\u003c\/span\u003e\u003cspan\u003e the total operating weight increases to approximately \u003c\/span\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"430\"\u003e17,500 to 19,800 lbs (7,938 to 8,981 kg)\u003c\/b\u003e\u003cspan\u003e concentrated over a single 46\" x 93\" mechanical room pad footprint.\u003c\/span\u003e\u003c\/p\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":68295561019503,"sku":"143-87ST","price":82925.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3785\/3807\/files\/mermade-filter-fiberglass-commercial-pool-filter-in-operation-474-474_dda7d9c9-06e6-4ee9-96e0-d0b1f744b733.jpg?v=1794325846","url":"https:\/\/commercialpoolandspasupplies.com\/products\/mermade-143-87-horizontal-sand-filters-25-6-sq-ft-each-stacked-51-2-sq-ft-total","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}