{"product_id":"mermade-143-105-horizontal-sand-filter-31-0-sq-ft","title":"Mermade 143-105 Horizontal Sand Filter, 31.0 Sq.ft","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\" class=\"\"\u003eMer-Made 143-105 Horizontal Sand Filter (31.0 sq. ft. Filter Area)\u003c\/b\u003e\u003cspan\u003e is a heavy-duty,\u003c\/span\u003e\u003cspan\u003e commercial-grade fiberglass pressure sand filter manufactured by Mer-Made Filter,\u003c\/span\u003e\u003cspan\u003e Inc.\u003c\/span\u003e\u003cspan\u003e Representing the highest-capacity standard model in Mer-Made’s 42-inch diameter line,\u003c\/span\u003e\u003cspan\u003e the 143 Series combines a wide diameter with an elongated shell to deliver deep media stratification,\u003c\/span\u003e\u003cspan\u003e high vertical freeboard,\u003c\/span\u003e\u003cspan\u003e and massive debris-holding capacity.\u003c\/span\u003e\u003cspan\u003e It is specifically engineered for high-volume municipal aquatic facilities,\u003c\/span\u003e\u003cspan\u003e Olympic competition complexes,\u003c\/span\u003e\u003cspan\u003e high-load resort wave pools,\u003c\/span\u003e\u003cspan\u003e and water theme parks where vertical overhead clearances are restricted.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"1\"\u003e\u003cspan\u003eThe pressure vessel is manufactured from seamless,\u003c\/span\u003e\u003cspan\u003e continuous filament-wound fiberglass-reinforced polyester (FRP) with an integral resin-rich chemical barrier that eliminates rust and resists aggressive chlorinated water,\u003c\/span\u003e\u003cspan\u003e ozone,\u003c\/span\u003e\u003cspan\u003e and commercial pool water chemistry.\u003c\/span\u003e\u003cspan\u003e Internally,\u003c\/span\u003e\u003cspan\u003e a full-length Schedule 80 PVC distribution header with hydraulic diffusers spans the crown of the vessel,\u003c\/span\u003e\u003cspan\u003e paired with a full-length,\u003c\/span\u003e\u003cspan\u003e low-profile slotted PVC collector underdrain assembly across the bottom inverted arch.\u003c\/span\u003e\u003cspan class=\"\"\u003e This configuration maintains balanced hydraulic face velocities across the entire sand bed during filtration and prevents media channeling or lateral snapping during high-rate 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\"\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 143-105 (143 Series Commercial 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\"\u003eEffective Filtration Area\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,2,1,0\"\u003e31.0 sq. ft. (2.88 m²)\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\"\u003eTank Outer Diameter (OD)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,3,1,0\"\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=\"2,4,0,0\"\u003e\u003cb data-path-to-node=\"2,4,0,0\" 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=\"2,4,1,0\"\u003eApprox. 105.0 in (2,667 mm)\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\"\u003eOverall Dimensions (with Saddles\/Fittings)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,5,1,0\"\u003eApprox. 44.0 in W x 111.0 in L x 52.0 in H (1,118 mm x 2,819 mm x 1,321 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\"\u003eFace Piping \/ Connection Size\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,6,1,0\"\u003e6.0 in (150 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=\"2,7,0,0\"\u003e\u003cb data-path-to-node=\"2,7,0,0\" 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=\"2,7,1,0\"\u003e155.0 US gpm (35.2 m³\/h)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,8,0,0\"\u003e\u003cb data-path-to-node=\"2,8,0,0\" 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=\"2,8,1,0\"\u003e310.0 US gpm (70.4 m³\/h)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,9,0,0\"\u003e\u003cb data-path-to-node=\"2,9,0,0\" 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=\"2,9,1,0\"\u003e434.0 US gpm (98.6 m³\/h)\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 (Standard 15 gpm\/sq. ft.)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,10,1,0\"\u003e465.0 US gpm (105.6 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\"\u003eRequired Backwash Flow Rate (15 gpm\/sq. ft.)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,11,1,0\"\u003e465.0 US gpm (105.6 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\"\u003eTurnover Capacity (8-Hour @ 434 gpm)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,12,1,0\"\u003e208,320 US gal (788.6 m³)\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\"\u003eTurnover Capacity (6-Hour @ 434 gpm)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,13,1,0\"\u003e156,240 US gal (591.4 m³)\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\"\u003eMaximum Working Pressure\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,14,1,0\"\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=\"2,15,0,0\"\u003e\u003cb data-path-to-node=\"2,15,0,0\" 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=\"2,15,1,0\"\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=\"2,16,0,0\"\u003e\u003cb data-path-to-node=\"2,16,0,0\" data-index-in-node=\"0\"\u003eCertifications\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,16,1,0\"\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=\"2,17,0,0\"\u003e\u003cb data-path-to-node=\"2,17,0,0\" data-index-in-node=\"0\"\u003eStandard Media Load (Silica Sand + Graded Gravel)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,17,1,0\"\u003eApprox. 5,000 to 5,500 lbs (2,268 to 2,495 kg) total\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- \u003ci data-path-to-node=\"2,18,0,0\" 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=\"2,18,1,0\"\u003eApprox. 3,500 to 3,850 lbs (1,588 to 1,746 kg)\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- \u003ci data-path-to-node=\"2,19,0,0\" 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=\"2,19,1,0\"\u003eApprox. 1,500 to 1,650 lbs (680 to 748 kg)\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- \u003ci data-path-to-node=\"2,20,0,0\" 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=\"2,20,1,0\"\u003eApprox. 4,250 to 4,675 lbs (1,928 to 2,121 kg) total \u003ci data-path-to-node=\"2,20,1,0\" 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=\"2,21,0,0\"\u003e\u003cb data-path-to-node=\"2,21,0,0\" data-index-in-node=\"0\"\u003eService Access\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,21,1,0\"\u003eTop elliptical manway (11\" x 15\" or 12\" x 16\") with pressure-assisted EPDM gasket\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\u003cb data-path-to-node=\"2,22,0,0\" 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=\"2,22,1,0\"\u003eFilament-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\u003eThe unit includes integrated heavy-duty FRP structural support saddles,\u003c\/span\u003e\u003cspan\u003e a front-mounted differential pressure gauge panel,\u003c\/span\u003e\u003cspan\u003e continuous automatic internal air relief piping,\u003c\/span\u003e\u003cspan\u003e an external manual brass\/stainless steel air vent valve,\u003c\/span\u003e\u003cspan\u003e and an integrated bottom combination water drain and media slurry cleanout port.\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 dry filter vessel—including structural support saddles,\u003c\/span\u003e\u003cspan\u003e internal Schedule 80 PVC distribution\/underdrain assemblies,\u003c\/span\u003e\u003cspan\u003e manway hardware,\u003c\/span\u003e\u003cspan\u003e and protective heavy-duty pallet crating (excluding media)—is approximately \u003c\/span\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"237\"\u003e580 to 660 lbs (263 to 299 kg)\u003c\/b\u003e\u003cspan\u003e.\u003c\/span\u003e\u003cspan\u003e When charged with standard sand\/gravel media and completely flooded during full 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=\"414\"\u003e10,000 to 11,200 lbs (4,536 to 5,080 kg)\u003c\/b\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":68295493025903,"sku":"143-105","price":43214.0,"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-143-105-horizontal-sand-filter-31-0-sq-ft","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}