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- Product label: Special Order
Koch Air Filter 16 x 20 x 4 MERV 11 Multi-Pleat XL11 Pleated Air Filter - 6 Pack
Sale price
$158.36 USD
-100%
Regular price
Regular price
$158.36 USD
Unit price
$26.39
per
each
Increments of 1
Minimum of 1
Maximum of
Koch Air Filter 16 x 20 x 4 MERV 11 Multi-Pleat XL11 Pleated Air Filter - 6 Pack
Sale price
$158.36 USD
Regular price
Regular price
$158.36 USD
Unit price
$26.39
per
each
Product Details
The Koch Multi-Pleat XL11 is a MERV 11 pleated replacement filter for gas and oil furnaces, heat pumps, and AC air handlers that use a 16 x 20 x 4 filter. Model 102-499-025. Actual dimensions are 15½" × 19½" × 3¾" — nominal 16 x 20 x 4.
This is a direct upgrade path from MERV 6 and MERV 7 pleated filters currently in service, with minimal increase in airflow resistance and measurable improvement in particulate capture efficiency.
Filter Media & Construction
The XL11 uses a 100% non-woven synthetic media manufactured from recycled material. The media is hydrophobic — it does not absorb moisture — and maintains performance in high-humidity environments where paper-based or cellulose media degrades. MERV 11 efficiency is achieved with low resistance to airflow, making it suitable for systems not designed for high-static filters.
The V-pleat design maximizes surface area within the 4" depth. Diamond-shaped expanded metal media support prevents pleat collapse under sustained airflow. The filter media pack is sealed to the frame to eliminate air bypass. The moisture-resistant clay-coated frame is also manufactured from recycled material.
Specifications
| Model Number | 102-499-025 |
| Nominal Size | 16 x 20 x 4 |
| Actual Size | 15½" × 19½" × 3¾" |
| MERV Rating | 11 |
| Media | 100% non-woven synthetic | hydrophobic | recycled material |
| Media Support | Diamond-shaped expanded metal |
| Pleat Design | V-pleat |
| Frame | Moisture-resistant clay-coated | recycled material |
| Listing | UL 900 Class 2 |
| Pack Quantity | 6 filters |
| Replace Every | 3 months (check monthly) |
MERV 11 — What It Captures
MERV 11 filters capture particles in the 1.0–3.0 µm range at 65%+ efficiency and particles in the 3.0–10.0 µm range at 85%+ efficiency. This includes fine dust, pollen, mold spores, pet dander, and some bacteria-carrying particles. It is a meaningful step up from MERV 6–7 filters without the high static pressure drop of MERV 13+ filters that can strain residential HVAC equipment.
Availability note: This item ships from stock when available. Larger quantities may require additional lead time. If you need a confirmed ship date before ordering, contact us and we will verify current stock prior to your purchase.
Returns & Exchanges
We want every order to go smoothly, and if something is not right we want to make it right. At the same time, for the health and safety of everyone — our team, other customers, and the facilities these products are used in — we cannot resell opened or used filtration and air quality products. Our policy below is built around that reality. If you have any questions about a product before ordering, please reach out — we would rather help you get the right thing the first time than deal with a return after the fact.
Eligibility
Opened or used items are not eligible for return or refund under any circumstances. Products designated as Special Order, Clearance, Discontinued, or Final Sale are also not eligible for return or exchange. All other returns require items to be unused, in new condition, and in original packaging with all accessories and documentation included.
30-Day Return Policy
Unopened, unused items may be returned within 30 days of delivery, subject to a restocking fee of at least 25% of the purchase price. Original shipping costs are not refunded. Return shipping is the buyer's responsibility. A Return Material Authorization (RMA) number is required before shipping any return — contact us first at Help@HEPAFilterSales.com to receive return instructions. Returns sent without an RMA may be refused.
Refunds are processed within 10 business days of receiving and inspecting the returned item. You will be notified by email when your refund has been issued.
Exchanges — Standard Restocking Charge Waived
Exchanges for unopened, unused items are not subject to a restocking fee. Contact us at Help@HEPAFilterSales.com before returning any item to arrange an exchange and receive expert advice on the correct solution.
Order Cancellations
Contact us immediately if you need to cancel an order. Not all orders can be cancelled once placed — freight and special-order items in particular may ship before a cancellation can be processed.
Damaged or Incorrect Items
If your order arrives damaged, note the damage with the delivery carrier at time of delivery, photograph the damage, and email us within 48 hours of delivery at Help@HEPAFilterSales.com. We will arrange return shipping and send a replacement at no additional cost to you.
If you receive an incorrect item (compared to what was ordered), email us your order number and a description of the issue. We will arrange return shipping and send the correct item at no cost to you.
Defective Items
Suspected product defects and performance issues are warranty matters handled directly by the manufacturer — they are not eligible for return or return shipping reimbursement from HEPA Filter Sales, LLC. Contact us and we will provide manufacturer contact information to assist with a warranty claim.
For More Information, please take a moment to review our governing policies:
Returns & Refunds Policy
Shipping Policy
Purchase Options & Subscription Policy