• Koch OdorKleen 250 CarbonWeb MERV 8 high-capacity carbon particulate pleated panel filter, 250 gsm carbon plus potassium permanganate alumina for heavy VOC and gas-phase contaminant loads, beverage board frame with cross-member, per Koch PB-1201

Representative image — you’ll receive the exact size you select. Actual dimensions are in the specs.

Koch OdorKleen 250 (CarbonWeb High-Capacity MERV 8 Carbon Particulate Filter)

  • MERV 8
  • Pack 12 filters

102-792-011

$ 590.88
$ 590.88
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Direct from Koch · ships in 1–3 weeks (Aug 18 – Sep 1)
Produced to spec by Koch. Exact ship date confirmed once scheduled in the production queue. See current production schedule.
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About the filter image
Images are representative across sizes. You'll receive the exact size you select above — actual dimensions are listed in the product specs.
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Product details

Per Koch Bulletin PB-1201, the Koch OdorKleen 250 is a high-capacity MERV 8 carbon/particulate filter engineered for environments where standard carbon-impregnated filters reach saturation too quickly. The OdorKleen 250 contains 250 gsm of carbon product attached to a high-efficiency cotton-polyester media blend that includes granular activated carbon plus activated alumina impregnated with potassium permanganate. The "250" in the product name refers to that carbon load — substantially higher than the carbon impregnation in standard carbon pleated filters.

What you get: high-capacity carbon-particulate panel filters, sold by the case

Each variant is a single OdorKleen 250 pleated panel with a recyclable beverage board frame, integrated CarbonWeb® gas-phase media, and a particulate-capture downstream layer. Available in 2″ and 4″ depths across multiple face sizes. The price you see for each variant is the full case price:

  • 2″ depth filters (18 sizes):
    • 10″x20″x2″ — 12 filters per case
    • 12″x20″x2″ — available by quote. Request a quote for current pricing.
    • 12″x24″x2″ — 12 filters per case
    • 14″x20″x2″ — available by quote. Request a quote for current pricing.
    • 14″x25″x2″ — available by quote. Request a quote for current pricing.
    • 15″x20″x2″ — available by quote. Request a quote for current pricing.
    • 16″x16″x2″ — 12 filters per case
    • 16″x20″x2″ — 12 filters per case
    • 16″x24″x2″ — available by quote. Request a quote for current pricing.
    • 16″x25″x2″ — 12 filters per case
    • 16″x30″x2″ — available by quote. Request a quote for current pricing.
    • 18″x20″x2″ — available by quote. Request a quote for current pricing.
    • 18″x24″x2″ — 12 filters per case
    • 20″x20″x2″ — 12 filters per case
    • 20″x24″x2″ — 12 filters per case
    • 20″x25″x2″ — 12 filters per case
    • 24″x24″x2″ — 12 filters per case
    • 25″x25″x2″ — available by quote. Request a quote for current pricing.
  • 4″ depth filters (9 sizes):
    • 12″x24″x4″ — 6 filters per case
    • 16″x20″x4″ — 6 filters per case
    • 16″x24″x4″ — available by quote. Request a quote for current pricing.
    • 16″x25″x4″ — 6 filters per case
    • 18″x24″x4″ — 6 filters per case
    • 20″x20″x4″ — 6 filters per case
    • 20″x24″x4″ — 6 filters per case
    • 20″x25″x4″ — 6 filters per case
    • 24″x24″x4″ — 6 filters per case

CarbonWeb® gas-phase filtration technology

OdorKleen 250 uses CarbonWeb® technology — carbon-filled media fibers engineered for low resistance and high adsorption capacity:

  • Gas-phase carbon: 60% activity granular activated carbon. Per Koch, the gas-phase carbon has "nearly five million square feet of surface area per pound."
  • Adsorption efficiency: The bonded carbon fibers use only approximately 1% of the carbon's surface area — leaving roughly 99% available for gas contaminant adsorption. This is one of the key differentiators Koch cites versus competitive carbon filter designs.
  • Tortuous airflow path: Gas contaminants pass through tortuous pathways inside the media, ensuring intimate contact between contaminant molecules and the carbon adsorption surface.
  • Patented anti-settling design: OdorKleen 250 carries a patented "media-carbon will not settle" feature that maintains adsorption performance through the filter's service life without the carbon migrating or settling in transit or operation.
  • Potassium permanganate alumina layer: In addition to the activated carbon, OdorKleen 250 includes activated alumina impregnated with potassium permanganate — an oxidizing chemistry that targets specific gaseous pollutants (formaldehyde, hydrogen sulfide, sulfur dioxide, nitrogen dioxide) that activated carbon alone is less effective against.
  • Particulate capture layer: A 3/8″ light/medium duty cotton-polyester blend with carbon-filled fibers handles particulate contaminants. The combination of the two distinct medias gives the filter MERV 8 efficiency while maintaining a low pressure drop.

OdorKleen 250 construction and specifications

  • Form factor: Extended-surface pleated panel with two-stage media (gas-phase + particulate)
  • Media: 100% synthetic carbon-impregnated mechanical media, 250 gsm carbon load
  • Media support: Self-supporting
  • Frame: High wet-strength beverage board with cross-member designed to increase filter strength and rigidity. Frame is recyclable.
  • MERV rating: MERV 8 per ASHRAE Test Standard 52.2
  • Maximum continuous operating temperature: 180°F (93°C) — substantially higher than standard carbon pleated filters
  • Recommended Final Resistance: 1.2″ w.g.
  • Available depths: 1″, 2″, and 4″ per Koch PB-1201; this RTF lineup carries 2″ and 4″. For 1″ depth sizes, request a quote.
  • Disposability: Single-use disposable; not washable

Performance data by depth

Filter Depth Test Air Velocity Initial Resistance Final Resistance Pleats / Linear Foot
1″ 300 FPM 0.35″ w.g. 1.2″ w.g. 12
2″ 500 FPM 0.41″ w.g. 1.2″ w.g. 10
4″ 500 FPM 0.33″ w.g. 1.2″ w.g. 9

For rated capacity (CFM) at 300 FPM and 500 FPM face velocities for the specific size you're ordering, refer to the Koch bulletin linked at the bottom of this page or contact RTF for assistance.

Applications

OdorKleen 250 is specified for environments with heavier gas-phase contaminant loads than standard carbon-impregnated filters can handle:

  • Chemical Storage
  • Laboratories
  • Museums and archives
  • Pharmaceutical
  • Hospitals
  • Airports
  • Industrial Facilities
  • Commercial Office Buildings
  • Sports Arenas
  • Smoking Lounges
  • Casinos
  • Laminate Adhesive (manufacturing)
  • IAQ Emergency response

OdorKleen 250 vs OdorKleen ES — choosing the right tier

Koch produces two carbon-impregnated MERV 8 pleated filters in this product family. Choosing between them depends on contaminant load, operating conditions, and budget:

  • OdorKleen 250 (this product): 250 gsm carbon load with CarbonWeb® technology and potassium permanganate alumina. Max operating temp 180°F. Specified for chemical storage, laboratories, museums, pharmaceutical, IAQ emergency — environments where standard carbon impregnation saturates too quickly or where elevated temperatures rule out standard frames.
  • OdorKleen ES: Standard carbon-impregnation pleated filter for lighter contaminant loads. Max operating temp 120°F. Specified for office buildings, schools, hospitals, smoking lounges — standard HVAC environments with light to moderate odor and VOC loads.

If you're unsure which fits your application, contact RTF support with your contaminant profile and operating conditions and we'll help match the right filter.

Sizing and ordering notes

  • Sizes are nominal. Match nominal dimensions to your filter slot. Actual filter dimensions are typically 1/2″ less than nominal in width and height per the Multi-Pleat XL8 frame family standard.
  • 2″ depth ships 12 per case; 4″ depth ships 6 per case. Carton quantity reflects shipping density — thicker filters take more space.
  • 1″ depth available: Koch documents 1″ depth sizes (different SKU pattern). Not stocked in this RTF lineup — request a quote for 1″ depths.
  • "Call for Quote" sizes: Several sizes are available by special order only. Request a quote for these or for facility-scale orders.
  • Replacement schedule: Standard MERV 8 maintenance interval applies, but odor breakthrough is the practical end-of-life signal for any carbon filter. If contaminant odors return, the carbon and/or potassium permanganate has saturated regardless of pressure drop.
  • Operating temperature: Continuous operation up to 180°F (93°C). Significantly higher than OdorKleen ES (120°F) — suitable for elevated-temperature HVAC applications.
  • Disposal: Filters loaded with VOCs, chemical contaminants, or industrial gases may have specific disposal requirements depending on captured contaminants. Follow your local hazardous waste regulations.
  • Frame is recyclable once stripped of the spent media.

Koch product literature

Detailed product specifications, capacity tables, efficiency curves, and complete performance data for Koch OdorKleen 250 are published in Koch Bulletin PB-1201: OdorKleen 250 Product Specification PDF (Koch Filter Corporation). Available through Koch Filter Corporation (kochfilter.com) or by request through RTF.

Koch OdorKleen 250 (CarbonWeb High-Capacity MERV 8 Carbon Particulate Filter)

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Our distribution network ships from multiple U.S. locations — so most orders arrive faster than coast-to-coast routing would suggest.

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Commercial & Bulk Orders

Buying this filter for a property, fleet, or facility?

Schools, clinics, property management, multifamily, and government facilities order from us in standing rotation. Volume pricing, tax-exempt setup, and scheduled delivery available.

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Frequently Asked Questions

Answers to the questions we get every day

From sizing and MERV ratings to bulk orders and subscriptions — here's what customers ask before they buy. For product-specific specs, check the description above.

Sizing & fit
How do I know what size filter I need?

The size is printed on the edge of your current filter. Read the nominal size — for example, 16x25x1 — and order that size. The actual filter will measure about 1/2″ less than the nominal size on each dimension. That's industry standard and is how the filter slides into the slot without binding.

If the printed size is worn off, measure the filter slot itself — not the old filter — and round up to the nearest standard size. Our How to Measure guide walks through it step by step.

What if the filter doesn't fit my system?

You're covered by our Filter Fit Guarantee. If the filter doesn't fit your system as expected, contact us within 30 days and we'll make it right — including custom-sized replacements for non-standard slots. One flat $30 fee covers exchanges under the guarantee, and we'll walk through sizing with you so the replacement fits the first time.

Do you offer custom filter sizes?

Custom filters are made to specification down to 1/8″ precision — useful for older homes, clinical spaces, schools, and commercial AHUs with non-standard slot dimensions. Available in every MERV rating from 1–4 through 13, plus washable and extended-surface options.

If you don't see your size listed in our standard lineup, contact us or request a quote and we'll confirm what's available in the media and efficiency you need.

MERV & performance
What is a MERV rating and which one do I need?

MERV (Minimum Efficiency Reporting Value) is the industry-standard scale for how effectively a filter captures airborne particles. Higher numbers capture smaller particles. Most homes do well on MERV 8 to MERV 11. MERV 13 is the step up for pets, allergies, or wildfire smoke exposure — if your HVAC system supports it.

The MERV Rating Explained guide has the full breakdown, or take the 60-second MERV quiz for a personalized recommendation.

Will a higher MERV filter hurt my HVAC system?

Not when it's matched properly. Higher MERV filters do add airflow resistance, but most modern furnaces and air handlers handle MERV 11 comfortably, and many support MERV 13 — especially systems with 4″ or deeper media cabinets. The filter slot depth matters as much as the MERV rating.

Older systems (pre-2000) or tight 1″ slots may struggle with MERV 13. If airflow feels weak from vents, the blower sounds strained, or the coil ices up, step back down to MERV 10 or MERV 11. When in doubt, upgrade in steps — MERV 8 → 11 → 13 — and monitor for a cycle before moving up again.

What's the difference between MERV, MPR, and FPR ratings?

MERV is the universal industry standard, published through ASHRAE 52.2 testing and used by HVAC professionals worldwide. MPR (Micro-Particle Rating) is 3M's internal scale for their Filtrete line. FPR (Filter Performance Rating) is Home Depot's proprietary rating for filters sold in their stores.

MPR and FPR roughly correlate to MERV within their own brand lineups, but they aren't directly comparable across retailers. A Filtrete MPR 1900 is roughly MERV 13; an FPR 10 is also roughly MERV 13. Always check the MERV rating for an apples-to-apples comparison.

What is pleated filter media made out of?

Pleated filter media is a synthetic nonwoven fabric — most often polyester, sometimes a cotton-polyester blend — pleated over a supporting frame of galvanized wire or paperboard. The pleats add surface area, and the frame holds them open so the media keeps its shape under airflow.

Shipping & delivery
How fast will my filter ship?

Standard stocked filters ship within 1–2 business days from the warehouse nearest to your shipping address. Most orders arrive in 2–5 business days via UPS or FedEx. Custom-sized filters are made to order and have their own production lead time listed in the product description.

Current production and shipping timelines are always live on our production schedule page.

Do you ship to Alaska, Hawaii, or PO boxes?

We ship to Alaska and Hawaii — shipping is calculated at checkout based on the address. Free shipping on orders $50+ applies to the lower 48 contiguous states only; AK and HI orders ship at carrier rates.

PO boxes cannot be accepted. Filter boxes are physically oversized and our carriers (UPS and FedEx) won't deliver to PO boxes at this size. You'll need a street address, business address, or pickup location for delivery.

Orders, returns & subscriptions
Can I return or exchange a filter I don't need?

Unopened stocked filters can be returned within 30 days under our refund policy. Custom-sized filters are made to your specification and aren't returnable unless they arrived damaged or incorrectly sized from us.

If a filter arrives damaged or doesn't match what was ordered, submit a claim and we'll replace it — no back-and-forth.

How does the subscribe & save option work?

Most filters ship on recurring delivery at a 10% discount — cadences from every month through every 6 months, plus an annual option at 5% off. Pick the interval that matches your change-out schedule on the product page, and we'll auto-ship on time with no reordering required.

You're only charged when an order ships, and the discount applies to every delivery — not just the first one.

Can I pause, skip, or change my subscription?

Yes, any time. Pause, skip a delivery, change the cadence, swap the filter, update the shipping address, or cancel entirely — all from your account dashboard. No emails required, no hold times, no cancellation fees. See our subscription policy for the full details.

Bulk, commercial & tax-exempt
Do you offer bulk pricing for schools, clinics, or property managers?

Yes — bulk and volume pricing is available for facilities, multifamily properties, fleets, and any organization ordering in standing rotation. We work with schools, clinics, property management companies, government agencies, and industrial facilities on recurring orders with negotiated pricing.

Request a quote with your filter specs and estimated annual volume, or visit our Commercial Services page to see the full commercial lineup.

Are you set up for tax-exempt and government purchases?

Yes. We work with schools, government agencies, non-profits, and resale-exempt buyers regularly. Submit your certificate through our tax-exempt purchases page and we'll set up your account so future orders ship tax-free with no repeated paperwork. Purchase orders and government procurement are supported for established accounts.

About RememberTheFilter.com
Are these genuine name-brand filters?

Yes. Every filter we stock comes from a manufacturer we've vetted — AAF Flanders, Koch, NaturalAire, PrimeShield, and a short list of others. We don't operate as a marketplace, so there's no third-party seller swapping inventory behind the listing.

If you've had issues with counterfeit or low-quality filters from other sellers, that's one of the reasons customers switch to us. Real brands, same specs every time, same source every time.

How do I reach your team if I have a question about a specific filter?

Call 866-469-8556 Monday–Friday, 6 AM – 5 PM PST. Text 425-515-2727 anytime — we reply next business day. Email support@rememberthefilter.com for written support, including tax-exempt setup, bulk orders, and order status.

Full options — including claims, price match, and quote requests — live on our contact page.

Need Help Choosing?

Not sure if Koch OdorKleen 250 (CarbonWeb High-Capacity MERV 8 Carbon Particulate Filter) is right for your system?

Call, text, or email our team. We've been sizing and spec'ing filters for homes and facilities for twenty years.