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DuraPURE ™Extended Surace Activated Carbon Filter 

• Provides effective removal of odors and Volatile Organic

Compounds (VOC).• Constructed with premium

grade coconut shell carbon

• Two carbon capacity options

• Available with specially impregnated adsorption

medias

Bulletin No. K-397-B

Koch Filter Corporation…Durable. Reliable. Versatile.

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DuraPURE Extended Surface Activated Carbon Filter 

As worldwide Indoor Air Quality specications become more demanding, gas phaseadsorption is quickly becoming a major factor in commercial and industrial air ltrationsystems. The DuraPURE is an excellent high performance solution in applications such as

airports, industrial facilities, chemical plants, ofce buildings, and a wide variety of otherair ltration systems.

The Koch Filter Corporation DuraPURE is an extended surface carbon lter which utilizespremium grade granular 60% activated carbon. DuraPURE’s unique V-shaped frame holdsup to 26 pounds of activated carbon in a single 24x24x12 lter, which insures maximumVOC and odor removal in any commercial or industrial application.

 Two Capacity Levels and Three Standard SizesTo meet the tough requirements of today’s complex air ltration systems, DuraPURE isavailable in three standard sizes, and two media capacity levels, Standard Capacity and

High Capacity.

Specialized Carbon MediaDuraPURE is also available with specialized impregnated carbon media for removal of am-monia, hydrogen sulde, and other difcult-to-remove compounds. Consult your Koch FilterCorporation representative to nd the appropriate DuraPURE model for your system.

DuraPURE Applications

With two capacity levels, three standard sizes and specially-impregnated carbons available, the DuraPURE can be

used effectively in a wide variety of applications.

AirportsDuraPURE removes toxic compounds, such as aviation uel emissions, and other airborne gases common toairport environments.

Commercial Ofce BuildingsDuraPURE is an excellent choice or removal o ood odors, and other harmul gases commonly  ound in urban settings.

Industrial Manufacturing PlantsDuraPURE is useul in protecting

 people and processes rom a widerange o gaseous emissions in source-capture or ventilation applications.

HospitalsDuraPURE provides eective control 

o undesirable odors and compounds such as umes rom parking garages.

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DuraPURE Construction and Technical Data

Activated Coconut Shell CarbonPremium grade 60% activated carbon provides maximum adsorption o VOC’s and odors(other specially impregnated medias are also available).

Individual Media CellsMoisture resistant honeycomb carbon cells oer highefciency contaminant removal, with relatively low resistance to airow.

Plastic and Metal Frame ComponentsRugged components make the DuraPURE extremely rigid and easy to install. Single or double header available.

DustNet ™ Afterlter DuraPURE flters may also be urnished with an optional DustNet ™ ,a cube-styleaterflter constructed with 100% polyester synthetic flter media. The DustNet ™ 

 provides enhanced efciency and prevents carbon dusting downstream.When ordered, DustNet ™ is shipped pre-installed on the DuraPURE flters.

 Thermoplastic Hot-Melt Adhesive Specialized sealant eliminates air bypass

and secures the individual carbon cellswithin the rame.

Qualies as a Koch Green ProductThe Koch Green icon identifes theDuraPURE as a product that meets or exceeds our criteria in one or more o the ollowing categories: Earns LEED Points,Reduces Energy Costs, Extends Filter Liecycles, Conserves Resources and/or  Improves Indoor Environmental Quality.

DuraPURE Dimensions*

NOMINAL ACTUALH 24” 233 ⁄ 8”

20 193 ⁄ 8

12 111 ⁄ 2

W 24 233 ⁄ 8

D 12 111 ⁄ 2

Metric Conversion Table1.0 inches 2.54 cm

1 ft 2 .093 m2

1 FPM .005/m second

1 CFM 1.7 m/hour

1.0 in. w.g. 249 Pa* Dimensions do no include the DustNet™

 TOP VIEW

FRONT VIEW

W

D

H

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Distributed by 

Look for the Koch Green icon! Whenever you see the Koch Green

icon, we are identifying a product that meets or exceeds our criteria in

one or more of the following categories: Earns LEED Points, Reduces

Energy Costs, Extends Filter Lifecycles, Conserves Resources, and 

 Improves Indoor Environmental Quality.

DuraPURE Product InformationDuraPUREModel No.

Nominal Size(HxWxD)

Actual Size(HxWxD)

Initial PressureDrop (inch w.g.)

Carbon WeightPer Filter (lbs.)

 Total WeightPer Filter (lbs.)

DuraPURE Standard Capacity DPC-442-SC 24 x 24 x 12 233 ⁄ 8 x 233 ⁄ 8 x 111 ⁄ 2 .34 18 33

DPC-042-SC 20 x 24 x 12 193 ⁄ 8 x 233 ⁄ 8 x 111 ⁄ 2 .34 15 30

DPC-242-SC 12 x 24 x 12 113 ⁄ 8 x 233 ⁄ 8 x 111 ⁄ 2 .34 8 26

DuraPURE High Capacity 

DPC-422-SC 24 x 24 x 12 233 ⁄ 8 x 233 ⁄ 8 x 111 ⁄ 2 .74 26 41

DPC-042-SC 20 x 24 x 12 193 ⁄ 8 x 233 ⁄ 8 x 111 ⁄ 2 .74 24 36

DPC-242-SC 12 x 24 x 12 113 ⁄ 8 x 233 ⁄ 8 x 111 ⁄ 2 .74 12 32

Additional DuraPURE InformationSolvent Capacity of Standard Capacity DuraPURE: 5 lbs.Solvent Capacity of High Capacity DuraPURE: 8 lbs.

Carbon Activity Rating: Minimum 60% on carbon tetrachloride (CCl4) at 25º C.

Acetic acidAlly acetateBenzyl acetateButyl acetateButyl ethyl etherButyric acidCarbon tetrachlorideChloroformChlorophenol Furan

HexaneIsoamyl alcohol Isopropyl alcohol Linalyl format Methyl benzoateMethyl oxyethanol CyclohexaneCyclohexylbenzeneDeceneDichlorotolueneDimethyl disuldeEthoxyethanol 

Ethyl benzoateEthyl suldeEthylene dichlorideFormic acidOctanePentachloroethanePhenol StyreneThiophenol Trichlorothane

TrimethylpentaneMethylsalycilateNitroanisoleValeric acidXyleneAcetoneBenzaledehydeBezeneButyl alcohol Butyl mercaptanCamphorChlorobenzene

ChloroctaneCineoleHeptaneIndeneIsoamyl butrateLimoneneLimoneneMethylally alcohol Methylally Butanol Methyl ethyl ketone (MEK)Cyclohexanol 

CymeneDibutylamineDiethyl ketoneDodecaneEthyl acetateEthyl methyl ketoneEthylbenzeneEthylene glycol Nitrogen dioxide<100ppbOctanoic acidPentylaminePropionic acid

TetrachloroethaneTolueneTrichloroethyleneTriethylhexaneMineral SpiritsNitroethaneVinyl PyridineAcrylic acidBenzonitrileBromoform

ButylbenzeneButyl suldeCarbon disulde2-Chloroethanol ChlorotolueneCresol HepteneIsoamyl acetateIsobutyl propinateLynaly acetateMethyl acetylsalicyateMethyl cyclohexanol 

Methyl propyl ketoneCyclohexanoneDecaneDichloroethaneDimethyl disuldeEthanol Ethynl lactateEthynl oxalateEthylcyclohexaneEthylene glycol diethyl ether

NonaneOctenePentyl etherPyridineTetrachloroethyleneTributylamineTridecaneMethyl pentanone (MIBK)NaphthaUndecaneVinyl toluene

Partial List of Contaminants Best Controlled by Activated Carbon

Corporate OfcesP.O. Box 3186 • 625 West Hill Street (40208)

Louisville, KY 40201 • 502.634.4796

Fax: 502.637.2280 • E mail: info@kochlter.com

www.kochlter.com

Regional Sales Ofces/Distribution CentersAtlanta, GA • Detroit, MI • East Greenville, PA* • Houston, TX* • Indianapolis, IN

Kansas City, MO • Louisville, KY* • Madbury, NH • Nashville, TN • Rancho Cucamonga, CA*

*Denotes manuacturing site.

© OCTOBER 2009 KOCH FILTER CORPORATION

Koch Filter Corporation maintains a policy o continuous product research and improvement, and retains the right 

to change product specifcation and design without notice.