The Maxi-Grid 200 25″ High Link Panel is the economical entry point in Koch’s 25″-high linked panel line — pre-linked 3-ply MERV 7 panels designed to drop into 25″-tall side-access filter tracks as a single continuous unit. Initial pressure drop is 0.36″ w.g. at 400 FPM per panel with a dust holding capacity of 243 grams at 1.5″ w.g. The right pick for cost-sensitive equipment protection and prefilter applications in large side-access AHUs with 25″ filter tracks.
What link panels are and why they matter
Link panels are pre-linked continuous strips of individual filter panels designed to drop into side-access filter housings 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:
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Eliminated air bypass: 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.
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Faster installation and removal: Maintenance personnel pull and replace one continuous unit per filter track instead of multiple individual panels. Significant labor savings on large air handlers.
This product covers the 25″-high panel section of the Maxi-Grid MG200 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.
25″ vs. 24″ panels — which do you need?
The 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.
Need a different panel-section height?
If your housing uses shorter filter tracks, see the matching Koch Maxi-Grid MG200 24″ High Link Panel, 20″ High Link Panel, 16″ High Link Panel, or 12″ Standard Link Panel. Same construction, same MERV 7 rating, same case-pack pricing model — just sized for shorter housings.
When Maxi-Grid MG200 25″ Link Panel is specified
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Large side-access AHU equipment protection in 25″-track configurations at the lowest cost point
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Side-access prefilter stages ahead of MERV 11+ final filters in large air handlers
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Cost-sensitive commercial HVAC with 25″ side-access housings (often retrofits where 24″ isn’t quite tall enough)
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Paint spray booth makeup air in 25″ side-access configurations
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Industrial air handlers and rooftop units with maximum-height side-access tracks
Sizing the link panel to your housing
Each 25″ link panel is identified by two dimensions:
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Panel count: 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 Master Link (continuous extra-long unit). Select the count that matches your housing track length.
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Panel width: 25″x12″, 25″x16″, 25″x18″, 25″x20″, 25″x22″, or 25″x25″. Match to your housing depth.
The 25″ line offers 6 panel widths ranging from very narrow (25″x12″) to fully square (25″x25″) — covering the full housing-depth range at the maximum standard panel-section height.
Design and construction
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Panel height: 25″ (per individual panel section)
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Configuration: Pre-linked continuous panel filter for side-access housings, 3-ply construction
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Media: 100% synthetic, progressively dense (suitable for high-moisture applications)
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Frame: Self-sealing design with steel internal support wire
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Tackifier: Downstream
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Antimicrobial: No
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Efficiency rating: MERV 7 per ASHRAE Test Standard 52.2
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Initial pressure drop: 0.36″ w.g. at 400 FPM face velocity (per panel)
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Dust holding capacity: 243 grams at 1.5″ w.g. final pressure drop (per panel)
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Listings: UL Classified per UL Standard 900
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Reference bulletin: Koch K-902
What MERV 7 captures
Captures larger airborne dust, lint, pollen fragments, and most household and construction-grade dust. A step above basic equipment-protection filters; suitable as a prefilter or for general air handling where high efficiency is not required.
Choosing across the Maxi-Grid 25″ Link Panel line
Koch offers four Maxi-Grid sub-lines in the 25″ high link panel format:
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MG200 25″ Link (MERV 7): Most economical, 3-ply, downstream tackifier. Equipment protection and prefilter applications.
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MG300 25″ Link (MERV 8): All-purpose workhorse, 3-ply, lowest pressure drop in the line. Standard commercial HVAC.
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MG400 25″ Link (MERV 11): Higher efficiency, 4-ply, higher pressure drop. Light-industrial and high-IAQ commercial.
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MG550 25″ Link (MERV 8): Antimicrobial-treated 3-ply with heavy-duty wire support. Healthcare, food processing, high-moisture sites.
Form-factor decision: 25″, 24″, 20″, 16″, or 12″ Link — or Standard Panels?
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This product (25″ Link): Pre-linked continuous panels, 25″-tall sections, for side-access housings with 25″ filter tracks. The maximum standard Link Panel height.
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24″ Link Panel (sister product): Same construction, 24″-tall sections.
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20″ Link Panel (sister product): Same construction, 20″-tall sections.
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16″ Link Panel (sister product): Same construction, 16″-tall sections.
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12″ Link Panel (sister product): Same construction, 12″-tall sections, for housings with 12″ tracks.
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Standard Panel (front-access): Individual panels installed one-by-one into front-access holding frames. Different form factor entirely.
Sizing and ordering notes
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Confirm your housing track length, depth, and panel-height requirement 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.
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Sold by the case. 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.
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Need a non-standard length, width, or height? Request a quote for custom link configurations or facility-scale orders.