{"product_id":"koch-duo-cube-1-ply-merv-6-cube-filter","title":"Koch Duo-Cube 1-Ply MERV 6 Synthetic Extended-Surface Cube Filter - Sold by the Case","description":"\u003cp\u003eKoch \u003cstrong\u003eDuo-Cube 1-Ply MERV 6 Cube Filters\u003c\/strong\u003e are extended-surface synthetic cube filters designed for general HVAC final-stage filtration in commercial buildings, industrial systems, and any application that uses cube-style filter baskets or holding frames. The 1-Ply construction is the \u003cstrong\u003eeconomical entry point\u003c\/strong\u003e in the Duo-Cube line — single-density polyester media with scrim backing, tuned for low-resistance airflow and reliable equipment protection.\u003c\/p\u003e\u003ch3\u003eWhat a cube filter is (and where it goes)\u003c\/h3\u003e\u003cp\u003eCube filters are \u003cstrong\u003eextended-surface filters\u003c\/strong\u003e — the media is folded or pleated into a deep three-dimensional cube that increases the filter’s effective surface area dramatically compared to a flat panel filter of the same face dimensions. A 24x24x8 cube has the same face footprint as a 24x24x8 panel, but several times more media area packed into that 8″ depth. This means longer service life, lower pressure drop at equivalent capture, and better dust holding capacity.\u003c\/p\u003e\u003cp\u003eCube filters drop into \u003cstrong\u003eside-load cube baskets, top-load racks, or front-load holding frames\u003c\/strong\u003e commonly found in commercial AHUs, packaged rooftop units, and larger industrial air handlers. They’re typically a \u003cstrong\u003efinal filter stage\u003c\/strong\u003e behind a panel prefilter, capturing what makes it past the prefilter while the deep pleated geometry gives extended service life.\u003c\/p\u003e\u003ch3\u003eStandard vs. Self-Seal — choosing the right construction\u003c\/h3\u003e\u003cp\u003eThis product offers \u003cstrong\u003etwo construction tiers\u003c\/strong\u003e of the same 1-Ply MERV 6 media, differentiated by how the filter holds itself in the rack:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Duo-Cube (poly media, no wire frame):\u003c\/strong\u003e Filter media without an integral wire frame. Designed for use in \u003cstrong\u003eexisting cube-type baskets\u003c\/strong\u003e — the basket itself provides the support structure; the filter just drops in. The right pick when your equipment is already configured for basket-style filters and you don’t need the filter to be self-supporting. Lowest cost option.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Seal Duo-Cube (poly media with integral wire frame):\u003c\/strong\u003e The same poly media with an \u003cstrong\u003einternal steel wire support\u003c\/strong\u003e built into the filter. The wire frame creates a \u003cstrong\u003eself-sealing design\u003c\/strong\u003e that fits standard holding frames \u003cstrong\u003ewithout clips or fasteners\u003c\/strong\u003e — the filter expands against the frame perimeter and seals the gap on its own. Eliminates air bypass that can happen when a filter shifts in the rack. The right pick for installations where the filter rack is a standard holding frame (rather than a basket), or where bypass elimination is a design priority.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBoth constructions use identical media and carry identical MERV 6 efficiency. The choice comes down to the rack you’re installing into and whether you need the filter to be self-supporting.\u003c\/p\u003e\u003ch3\u003eDesign and construction\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Extended-surface synthetic cube filter, 1-ply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e 100% synthetic polyester (single-density with scrim backing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture resistance:\u003c\/strong\u003e Suitable for high-moisture air handling applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e No frame (Standard) or integral 9-gauge steel wire (Self-Seal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTackifier:\u003c\/strong\u003e Available in dry or tackified versions (specify at order if tackified is needed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficiency rating:\u003c\/strong\u003e MERV 6 per ASHRAE Test Standard 52.2-2007\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial pressure drop:\u003c\/strong\u003e 0.10″ w.g. at 400 FPM (8″ depth); 0.15″ w.g. (11″); 0.19″ w.g. (15″)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference bulletin:\u003c\/strong\u003e Koch K111C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold by the case.\u003c\/strong\u003e Carton quantity varies by depth: 8″-15″ depths typically ship 10 per case; 20″ depths typically ship 5 per case. The variant price is the case price.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhen the 1-Ply Duo-Cube is specified\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral commercial HVAC final filtration\u003c\/strong\u003e — office buildings, schools, retail, hospitality where MERV 6 meets the spec\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment protection\u003c\/strong\u003e in air handlers, packaged rooftops, and larger industrial AHUs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrefilter stages\u003c\/strong\u003e ahead of higher-MERV final filters in multi-stage systems — the deep cube geometry extends the prefilter’s service life dramatically over a flat panel prefilter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-airflow applications\u003c\/strong\u003e where pressure drop is the limiting factor and the system can’t support a higher-MERV restriction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost-sensitive applications\u003c\/strong\u003e where 1-Ply MERV 6 capture meets the design requirement and a higher MERV would over-spec the system\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat MERV 6 captures\u003c\/h3\u003e\u003cp\u003eMERV 6 captures larger airborne dust, lint, pollen, and most household and construction-grade dust. A reliable equipment-protection and basic-filtration efficiency. \u003cstrong\u003eNot appropriate\u003c\/strong\u003e as a final filter for healthcare clean spaces, high-IAQ commercial applications, or anywhere MERV 8+ is specified. For higher-efficiency cube filtration, see Koch’s 2-Ply (MERV 7), 3-Ply (MERV 8), or 4-Ply (MERV 8 with maximum performance) Duo-Cube variants — same cube form factor, same applications, higher capture efficiency.\u003c\/p\u003e\u003ch3\u003eSizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecify both face dimensions and depth.\u003c\/strong\u003e Cube filters are sized as Width x Height x Depth (e.g., 24x24x8). Match all three dimensions to your filter rack — cube filters cannot be cut or trimmed in the field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm rack type before choosing construction.\u003c\/strong\u003e Standard (no wire) only works in equipment with cube-type baskets. Self-Seal (with wire) works in standard holding frames without clips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold by the case.\u003c\/strong\u003e Variant price is for the full case. Most depths ship 10 per case; deepest 20″ cubes ship 5 per case. Case quantities are listed in each variant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\"Call for Quote\" sizes:\u003c\/strong\u003e Some sizes are catalog items but require direct quoting due to lower order volume or build-to-order production. These appear unavailable in the dropdown — \u003ca href=\"\/pages\/quote\"\u003erequest a quote\u003c\/a\u003e for these sizes or for facility-scale orders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeed higher efficiency?\u003c\/strong\u003e The Duo-Cube line scales up through 2-Ply (MERV 7), 3-Ply (MERV 8), and 4-Ply (highest MERV 8). Same form factor, higher capture.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Koch","offers":[{"title":"Standard (no wire frame) \/ 16x20x8","offer_id":44118924263546,"sku":"105-700-001","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Standard (no wire frame) \/ 16x25x8","offer_id":44118924296314,"sku":"105-700-002","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Standard (no wire frame) \/ 20x20x8","offer_id":44118924329082,"sku":"105-700-003","price":240.9,"currency_code":"USD","in_stock":true},{"title":"Standard (no wire frame) \/ 20x25x8","offer_id":44118924361850,"sku":"105-700-004","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Standard (no wire frame) \/ 24x24x8","offer_id":44118924394618,"sku":"105-700-005","price":242.8,"currency_code":"USD","in_stock":true},{"title":"Standard (no wire frame) \/ 16x20x11","offer_id":44118924427386,"sku":"105-700-006","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Standard (no wire frame) \/ 16x25x11","offer_id":44118924460154,"sku":"105-700-007","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Standard (no wire frame) \/ 20x20x11","offer_id":44118924492922,"sku":"105-700-008","price":248.4,"currency_code":"USD","in_stock":true},{"title":"Standard (no wire frame) \/ 20x25x11","offer_id":44118924525690,"sku":"105-700-009","price":248.4,"currency_code":"USD","in_stock":true},{"title":"Standard (no wire frame) \/ 24x24x11","offer_id":44118924558458,"sku":"105-700-010","price":276.2,"currency_code":"USD","in_stock":true},{"title":"Standard (no wire frame) \/ 16x20x15","offer_id":44118924591226,"sku":"105-700-011","price":285.0,"currency_code":"USD","in_stock":true},{"title":"Standard (no wire frame) \/ 16x25x15","offer_id":44118924623994,"sku":"105-700-012","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Standard (no wire frame) \/ 20x20x15","offer_id":44118924656762,"sku":"105-700-013","price":287.1,"currency_code":"USD","in_stock":true},{"title":"Standard (no wire frame) \/ 20x25x15","offer_id":44118924689530,"sku":"105-700-014","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Standard (no wire frame) \/ 24x24x15","offer_id":44118924722298,"sku":"105-700-015","price":297.4,"currency_code":"USD","in_stock":true},{"title":"Standard (no wire frame) \/ 12x24x20","offer_id":44118924755066,"sku":"105-700-021","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Standard (no wire frame) \/ 16x20x20","offer_id":44118924787834,"sku":"105-700-016","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Standard (no wire frame) \/ 16x25x20","offer_id":44118924820602,"sku":"105-700-017","price":161.05,"currency_code":"USD","in_stock":true},{"title":"Standard (no wire frame) \/ 20x20x20","offer_id":44118924853370,"sku":"105-700-018","price":164.45,"currency_code":"USD","in_stock":true},{"title":"Standard (no wire frame) \/ 20x25x20","offer_id":44118924886138,"sku":"105-700-019","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Standard (no wire frame) \/ 24x24x20","offer_id":44118924918906,"sku":"105-700-020","price":171.05,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 16x20x8","offer_id":44118924951674,"sku":"105-701-001","price":281.8,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 16x25x8","offer_id":44118924984442,"sku":"105-701-002","price":289.3,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 20x20x8","offer_id":44118925017210,"sku":"105-701-003","price":293.4,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 20x25x8","offer_id":44118925049978,"sku":"105-701-004","price":296.3,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 24x24x8","offer_id":44118925082746,"sku":"105-701-005","price":305.5,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 16x20x11","offer_id":44118925115514,"sku":"105-701-006","price":303.1,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 16x25x11","offer_id":44118925148282,"sku":"105-701-007","price":310.2,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 20x20x11","offer_id":44118925181050,"sku":"105-701-008","price":313.8,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 20x25x11","offer_id":44118925213818,"sku":"105-701-009","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Self-Seal (integral wire frame) \/ 24x24x11","offer_id":44118925246586,"sku":"105-701-010","price":326.0,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 16x20x15","offer_id":44118925279354,"sku":"105-701-011","price":329.9,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 16x25x15","offer_id":44118925312122,"sku":"105-701-012","price":337.2,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 20x20x15","offer_id":44118925344890,"sku":"105-701-013","price":341.4,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 20x25x15","offer_id":44118925377658,"sku":"105-701-014","price":344.4,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 24x24x15","offer_id":44118925410426,"sku":"105-701-015","price":353.6,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 12x24x20","offer_id":44118925443194,"sku":"105-701-021","price":363.5,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 16x20x20","offer_id":44118925475962,"sku":"105-701-016","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Self-Seal (integral wire frame) \/ 16x25x20","offer_id":44118925508730,"sku":"105-701-017","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Self-Seal (integral wire frame) \/ 20x20x20","offer_id":44118925541498,"sku":"105-701-018","price":191.65,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 20x25x20","offer_id":44118925574266,"sku":"105-701-019","price":194.05,"currency_code":"USD","in_stock":true},{"title":"Self-Seal (integral wire frame) \/ 24x24x20","offer_id":44118925607034,"sku":"105-701-020","price":199.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_3413e099-76f6-4639-901d-70a3fee1ca87.png?v=1777738425","url":"https:\/\/www.rememberthefilter.com\/products\/koch-duo-cube-1-ply-merv-6-cube-filter","provider":"RememberTheFilter.com","version":"1.0","type":"link"}