{"product_id":"18x20x2-koch-micromax-pl2s-merv-11-120-652-1820","title":"18x20x2 Koch MicroMAX PL2S Box Style MERV 11 120-652-1820 (6 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 20″ × 2″\u003c\/strong\u003e \u003cstrong\u003eKoch MicroMAX PL2S\u003c\/strong\u003e filter (part number 120-652-1820) delivers \u003cstrong\u003eMERV 11\u003c\/strong\u003e filtration in a slim 2-inch-deep extended-surface minipleat design with \u003cstrong\u003e100% synthetic media\u003c\/strong\u003e and a plastic frame.\u003c\/p\u003e\u003cp\u003eThe PL2S is the \u003cstrong\u003ethinnest\u003c\/strong\u003e filter in the MicroMAX line and the only one built on all-synthetic media instead of micro fiberglass. The combination of a 2″ depth, extended-surface minipleat construction, and synthetic media gives it three properties that matter most in tight-slot, high-velocity, and high-moisture installations: it fits where deeper filters won’t, it holds up to airflow swings without media degradation, and it resists moisture-related breakdown that can compromise glass-fiber media.\u003c\/p\u003e\u003ch3\u003eWhen MicroMAX PL2S is specified\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-inch filter slots\u003c\/strong\u003e — commercial AHUs and air handlers sized for shallow filter depth where the 4″ or 6″ MicroMAX won’t fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-moisture environments\u003c\/strong\u003e — coastal, marine, humid industrial; synthetic media doesn’t shed or weaken the way glass-fiber paper can\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-velocity HVAC\u003c\/strong\u003e — minipleat construction in synthetic media holds pleat geometry under turbulent airflow better than standard pleated panels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable-air-volume (VAV) systems\u003c\/strong\u003e — rigid construction performs through airflow swings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement for legacy 2″ pleated panel filters\u003c\/strong\u003e — significant efficiency upgrade in the same housing footprint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-pressure-drop applications\u003c\/strong\u003e — minipleat surface area keeps initial resistance low for energy-conscious commercial systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign and construction\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e 100% synthetic, dual-layer minipleat construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Plastic (Box Style, no peripheral header)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Extended-surface minipleat, 2″ depth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficiency rating:\u003c\/strong\u003e MERV 11 per ASHRAE 52.2-2007\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\u003ePleat orientation:\u003c\/strong\u003e Width and height are interchangeable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack size:\u003c\/strong\u003e 6 filters per case\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat MERV 11 captures\u003c\/h3\u003e\u003cp\u003eCaptures fine dust, smoke, auto fumes, and most airborne particles down to 1 micron. A strong general-purpose efficiency for offices, schools, hotels, and light industrial.\u003c\/p\u003e\u003ch3\u003ePL2S vs. PL4S vs. PL6: which to choose\u003c\/h3\u003e\u003cp\u003eAll three are MicroMAX-line plastic-frame minipleat filters, distinguished primarily by depth and media type. The \u003cstrong\u003ePL2S\u003c\/strong\u003e (2″, synthetic) is the slimmest option — built for shallow filter slots and moisture-prone applications. The \u003cstrong\u003ePL4S\u003c\/strong\u003e (4″, synthetic) doubles the depth for greater dust-holding capacity while keeping the synthetic-media advantage. The \u003cstrong\u003ePL6\u003c\/strong\u003e (6″, micro fiberglass) is the longest-life option in this family for standard commercial environments where moisture isn’t a primary concern. Match depth to your housing first; choose synthetic (PL2S\/PL4S) over fiberglass (PL6) when humidity, marine air, or high airflow velocity are part of the picture.\u003c\/p\u003e\u003ch3\u003eSynthetic vs. microfiberglass media\u003c\/h3\u003e\u003cp\u003eThe synthetic media in the PL2S is engineered to resist breakdown in conditions where glass-fiber media historically degrades — high humidity, frequent wet\/dry cycles, or exposure to airborne moisture and chemicals. It also tolerates aggressive face velocities without releasing fibers downstream. For standard dry-air commercial HVAC, microfiberglass (PL6 or the 4″ MicroMAX) is the proven choice; for everything else, the synthetic option is the right tool.\u003c\/p\u003e\u003ch3\u003eImportant sizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes listed are nominal.\u003c\/strong\u003e Actual dimensions are slightly under nominal — standard for the industry; the filter slides into a nominal-sized slot without binding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecial sizes are not available.\u003c\/strong\u003e The MicroMAX PL2S ships only in the standard sizes listed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull carton quantities only.\u003c\/strong\u003e Per Koch’s shipping policy, MicroMAX PL2S ships in full carton quantities for safe transit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePleats install in either direction.\u003c\/strong\u003e Width and height are interchangeable on the media pack.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eThe MicroMAX PL2S drops into standard 2″-deep filter slots and is interchangeable with most competitive 2-inch box-style minipleat filters in the same nominal size. It serves as a meaningful upgrade for facilities currently running standard pleated panel filters in 2″ slots — same housing, significantly higher efficiency at MERV 11, 13, or 14.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"Default Title","offer_id":44118786736250,"sku":"120-652-1820","price":454.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_e0d629aa-60b7-4e0a-9c46-36d99e113192.jpg?v=1777660784","url":"https:\/\/www.rememberthefilter.com\/products\/18x20x2-koch-micromax-pl2s-merv-11-120-652-1820","provider":"RememberTheFilter.com","version":"1.0","type":"link"}