{"product_id":"koch-maxi-grid-mg550-merv-8-25-inch-link-panel","title":"Koch Maxi-Grid MG550 Antimicrobial Heavy-Duty 25\" High Link Panel Filter MERV 8 - Sold by the Case","description":"\u003cp\u003eThe Maxi-Grid 550 25″ High Link Panel is the \u003cstrong\u003eantimicrobial, heavy-duty\u003c\/strong\u003e variant in the 25″-high linked panel line — pre-linked \u003cstrong\u003e3-ply MERV 8\u003c\/strong\u003e panels with two key upgrades over the standard MG300 25″ Link: the media is treated with an \u003cstrong\u003eantimicrobial agent\u003c\/strong\u003e to inhibit microbial growth on captured organic matter, and the internal support wire is \u003cstrong\u003eheavy-duty\u003c\/strong\u003e for maximum frame rigidity in demanding side-access installations. Initial pressure drop is \u003cstrong\u003e0.28″ w.g. at 400 FPM\u003c\/strong\u003e per panel with a dust holding capacity of \u003cstrong\u003e268 grams at 1.5″ w.g.\u003c\/strong\u003e, identical to the MG300 25″ Link.\u003c\/p\u003e\u003ch3\u003eWhat link panels are and why they matter\u003c\/h3\u003e\u003cp\u003eLink panels are pre-linked continuous strips of individual filter panels designed to drop into \u003cstrong\u003eside-access filter housings\u003c\/strong\u003e as a single unit. Standard panel filters (front-access) install one panel at a time into a holding frame; link panels replace an entire row of filters in one motion. Two operational benefits result:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminated air bypass:\u003c\/strong\u003e Conventional individual panels can leave gaps between filters or at the end of a track, allowing unfiltered air to pass through. Link panels are continuously joined — no gaps, no bypass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFaster installation and removal:\u003c\/strong\u003e Maintenance personnel pull and replace one continuous unit per filter track instead of multiple individual panels. Significant labor savings on large air handlers.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis product covers the \u003cstrong\u003e25″-high panel section\u003c\/strong\u003e of the Maxi-Grid MG550 link line — the maximum panel-section height in the standard Maxi-Grid family. Each linked unit is built around 25″-tall individual panel sections joined together. Choose the number of panels (2 through 8, or the 24-panel Master Link) based on the length of your housing track, and the panel width (25″x12″ through 25″x25″) based on your housing depth.\u003c\/p\u003e\u003ch3\u003e25″ vs. 24″ panels — which do you need?\u003c\/h3\u003e\u003cp\u003eThe 25″ line is the maximum height in the standard Maxi-Grid Link family, and the extra inch over the 24″ line matters in retrofit situations where the housing track is just slightly taller than 24″. Always measure your filter track height before ordering — if your track is 25″ tall, ordering 24″ panels will leave a 1″ bypass gap at the top of the track, which defeats the purpose of using link panels in the first place.\u003c\/p\u003e\u003ch3\u003eNeed a different panel-section height?\u003c\/h3\u003e\u003cp\u003eIf your housing uses shorter filter tracks, see the matching Koch Maxi-Grid MG550 \u003cstrong\u003e24″ High Link Panel\u003c\/strong\u003e, \u003cstrong\u003e20″ High Link Panel\u003c\/strong\u003e, \u003cstrong\u003e16″ High Link Panel\u003c\/strong\u003e, or \u003cstrong\u003e12″ Standard Link Panel\u003c\/strong\u003e. Same construction, same MERV 8 rating, same case-pack pricing model — just sized for shorter housings.\u003c\/p\u003e\u003ch3\u003eWhen Maxi-Grid MG550 25″ Link Panel is specified\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHealthcare and clinical facilities\u003c\/strong\u003e with 25″ side-access housings — antimicrobial treatment is meaningful for biological-load environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFood processing and hospitality\u003c\/strong\u003e in large 25″ side-access configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-moisture installations\u003c\/strong\u003e — humid and condensing environments where standard panel media might support microbial growth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDemanding commercial 25″ side-access AHUs\u003c\/strong\u003e — heavy-duty wire support adds rigidity for installations with rough handling or vibration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-cycle commercial HVAC\u003c\/strong\u003e — antimicrobial protection extends practical service life between changeouts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizing the link panel to your housing\u003c\/h3\u003e\u003cp\u003eEach 25″ link panel is identified by two dimensions:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePanel count:\u003c\/strong\u003e How many 25″-tall panels are linked end-to-end. Available from 2-panel (24″-26″ total length range) up through 8-panel (200″-208″ total), plus the 24-panel \u003cstrong\u003eMaster Link\u003c\/strong\u003e (continuous extra-long unit). Select the count that matches your housing track length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePanel width:\u003c\/strong\u003e 25″x12″, 25″x16″, 25″x18″, 25″x20″, 25″x22″, or 25″x25″. Match to your housing depth.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe 25″ line offers \u003cstrong\u003e6 panel widths\u003c\/strong\u003e ranging from very narrow (25″x12″) to fully square (25″x25″) — covering the full housing-depth range at the maximum standard panel-section height.\u003c\/p\u003e\u003ch3\u003eDesign and construction\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePanel height:\u003c\/strong\u003e 25″ (per individual panel section)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Pre-linked continuous panel filter for side-access housings, 3-ply construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e 100% synthetic, progressively dense (suitable for high-moisture applications)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Self-sealing design with steel internal support wire (heavy-duty)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTackifier:\u003c\/strong\u003e Downstream\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntimicrobial:\u003c\/strong\u003e Yes (media-side treatment)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficiency rating:\u003c\/strong\u003e MERV 8 per ASHRAE Test Standard 52.2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial pressure drop:\u003c\/strong\u003e 0.28″ w.g. at 400 FPM face velocity (per panel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDust holding capacity:\u003c\/strong\u003e 268 grams at 1.5″ w.g. final pressure drop (per panel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eListings:\u003c\/strong\u003e UL Classified per UL Standard 900\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference bulletin:\u003c\/strong\u003e Koch K-902\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat MERV 8 captures\u003c\/h3\u003e\u003cp\u003eCaptures dust mite debris, pollen, mold spores, pet dander, and most household and office airborne dust. The standard residential and commercial efficiency for everyday indoor air quality, balancing capture performance with airflow.\u003c\/p\u003e\u003ch3\u003eAntimicrobial treatment\u003c\/h3\u003e\u003cp\u003eThe MG550 Link Panel media is treated with an antimicrobial agent that inhibits the growth of bacteria, fungi, and other microorganisms on captured organic matter (dust, skin cells, pollen, etc.). This makes the MG550 a strong choice for installations where captured biological material would otherwise become a substrate for microbial growth over the filter’s service life — healthcare environments, food processing, hospitality, and high-occupancy commercial buildings. The antimicrobial treatment protects the filter media itself; it does not actively kill airborne pathogens passing through the filter.\u003c\/p\u003e\u003ch3\u003eChoosing across the Maxi-Grid 25″ Link Panel line\u003c\/h3\u003e\u003cp\u003eKoch offers four Maxi-Grid sub-lines in the 25″ high link panel format:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMG200 25″ Link (MERV 7):\u003c\/strong\u003e Most economical, 3-ply, downstream tackifier. Equipment protection and prefilter applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMG300 25″ Link (MERV 8):\u003c\/strong\u003e All-purpose workhorse, 3-ply, lowest pressure drop in the line. Standard commercial HVAC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMG400 25″ Link (MERV 11):\u003c\/strong\u003e Higher efficiency, 4-ply, higher pressure drop. Light-industrial and high-IAQ commercial.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMG550 25″ Link (MERV 8):\u003c\/strong\u003e Antimicrobial-treated 3-ply with heavy-duty wire support. Healthcare, food processing, high-moisture sites.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eForm-factor decision: 25″, 24″, 20″, 16″, or 12″ Link — or Standard Panels?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThis product (25″ Link):\u003c\/strong\u003e Pre-linked continuous panels, 25″-tall sections, for side-access housings with 25″ filter tracks. The maximum standard Link Panel height.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″ Link Panel (sister product):\u003c\/strong\u003e Same construction, 24″-tall sections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″ Link Panel (sister product):\u003c\/strong\u003e Same construction, 20″-tall sections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″ Link Panel (sister product):\u003c\/strong\u003e Same construction, 16″-tall sections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″ Link Panel (sister product):\u003c\/strong\u003e Same construction, 12″-tall sections, for housings with 12″ tracks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Panel (front-access):\u003c\/strong\u003e Individual panels installed one-by-one into front-access holding frames. Different form factor entirely.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm your housing track length, depth, and panel-height requirement\u003c\/strong\u003e before ordering. Match panel count to track length, panel width to housing depth, and panel-section height (25″ here) to your filter track. Ordering the wrong panel-height creates bypass gaps that defeat the purpose of link panels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold by the case.\u003c\/strong\u003e Carton quantity varies by panel count: 2-panel link = 12 units per case; 3-panel = 8; 4-panel = 6; 5-panel = 5; 6-panel = 4; 7-panel and 8-panel = 3; 24-panel Master Link = 1 per case. The variant price is the case price.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeed a non-standard length, width, or height?\u003c\/strong\u003e \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for custom link configurations or facility-scale orders.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Koch","offers":[{"title":"2-panel (24-26\" length) \/ 25\"x12\"","offer_id":44118906863738,"sku":"135-2512-02","price":268.2,"currency_code":"USD","in_stock":true},{"title":"2-panel (32-34\" length) \/ 25\"x16\"","offer_id":44118906896506,"sku":"135-2516-02","price":286.8,"currency_code":"USD","in_stock":true},{"title":"2-panel (36-38\" length) \/ 25\"x18\"","offer_id":44118906929274,"sku":"135-2518-02","price":300.48,"currency_code":"USD","in_stock":true},{"title":"2-panel (40-42\" length) \/ 25\"x20\"","offer_id":44118906962042,"sku":"135-2520-02","price":314.4,"currency_code":"USD","in_stock":true},{"title":"2-panel (44-46\" length) \/ 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