Authorized Koch Dealer · Pleated & panel · MERV 1–13

Koch Custom Filter Builder

Build a Koch pleated filter or fiberglass/polyester panel to your exact face dimensions in 1/8″ increments — across MERV 8, 10, 11, 13, MicroSAFE antimicrobial, OdorKLEEN ES carbon, and MERV 1–4 fiberglass and polyester. Same-day quotes Mon–Fri before 5 PM PST.

1/2″, 1″, 2″, 4″ pleated depths 1/2″, 1″, 2″ panel depths Standard or High Capacity construction Double-filter for over-size racks Live Koch part-number generator

Need a HEPA-grade custom build instead? Use the Koch BioMAX HEPA Builder.

Koch Custom Filter Builder

RTF / KOCH-CUSTOM Built-to-spec · Ships from our distribution network

Filtration Efficiency

Choose your MERV rating.

Pleat Capacity

High capacity = more pleats per inch, longer service life.

Filter Depth

Nominal depth — actual is slightly less per Koch spec.

Media Type

Fiberglass and polyester panels are MERV 1–4 — equipment protection & maximum airflow.

Filter Depth

Standard panel depths.

Face Dimensions

Exact dimensions. Tolerance: −0, −⅛″ on width & height.

Width
+ ″
Height
+ ″
Double Filter — ships as 2 joined panels
Size out of range
Configure your filter to generate a part number…
Awaiting specifications Built to spec by Koch Filter
Same-day quotes on requests submitted Mon–Fri before 5 PM PST · Replies within 1 business day after hours
Per Koch Filter · Special Size spec sheets · Rev B RememberTheFilter.com · 866-469-8556 · Mon–Fri 6 AM–5 PM PST
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How it works

From custom spec to quote in three steps.

1
Configure your filter. Choose pleated or panel, MERV rating, depth, and face size in 1/8″ increments. The builder generates a live Koch part number as you click.
2
Submit for a same-day quote. Drop in your name, email, and quantity. Submissions Mon–Fri before 5 PM PST get a same-business-day quote. After hours and weekends route to next business day.
3
Approve and order. We confirm pricing, lead time, and shipping. PO-ready for qualified accounts, tax-exempt supported, net terms available. Production routes through Koch direct.
Scope

What this builder covers

The Koch Custom Filter Builder handles non-catalog pleated and panel filters across the standard Koch HVAC range:

  • Pleated MERV 8 — Multi-Pleat XL8 standard and high-capacity construction.
  • Pleated MERV 10 — Multi-Pleat XL10 in standard and HC.
  • Pleated MERV 11 — Multi-Pleat XL11 in standard and HC.
  • Pleated MERV 13 — Green13 high-capacity HVAC pleated.
  • MicroSAFE antimicrobial — pleated MERV 8 with EPA-registered antimicrobial treatment for healthcare and food service.
  • OdorKLEEN ES carbon — pleated MERV 8 with bonded activated carbon for odor and light VOC control.
  • Fiberglass MERV 1–4 — Type GD disposable fiberglass panels for AHU prefiltration and equipment protection.
  • Polyester panels — synthetic disposable panels for humid-climate prefiltration where fiberglass would shed.
Limits

What this builder doesn't cover

Anything outside the pleated/panel HVAC range gets routed through a different path:

Common questions

Custom Koch filters: what to expect

How long does a custom Koch filter take to ship?

Standard pleated and panel custom builds typically run a 5–10 business day lead time after order approval. We confirm exact lead time on your quote based on Koch's current production schedule and ship-from location. Rush options are available for time-sensitive orders — ask in your quote submission.

What's the minimum order quantity?

None. We'll quote a single custom Koch filter — there's no minimum. Quantity discounts kick in at 6, 12, 24, and 48-piece breakpoints, and bulk pricing is available for facility-scale recurring orders.

Can I get the same-day quote on weekends?

Quotes submitted Mon–Fri before 5 PM PST get a same-business-day reply. Submissions after 5 PM, on weekends, or on U.S. holidays route to next business day.

What measurement tolerance does Koch hold to?

Koch holds custom pleated and panel sizes to ±1/8″ on each face dimension. The filter you receive matches your spec within that tolerance — confirmed at production. If your housing requires tighter tolerance, note it in your quote submission and we'll confirm with Koch engineering before production.

What if I'm not sure what spec I need?

Send us what you have — existing filter dimensions, housing dimensions, equipment make and model, or a photo of the rack. Email, text 425-515-2727, or call 866-469-8556 Mon–Fri 6 AM–5 PM PST. We'll spec it for you.

Do custom Koch filters carry the Filter Fit Guarantee?

Yes. Every custom Koch filter is covered by our Filter Fit Guarantee™. If the filter doesn't fit your equipment as spec'd or arrives damaged, we'll make it right. See the full guarantee terms.

Need help spec'ing a custom Koch?

Send us your existing filter dimensions, equipment, or a photo. We'll spec it and quote it.

Request a quote Build a BioMAX HEPA Call 866-469-8556 Text 425-515-2727